The sweet tooth of infancy: Is sweetness exposure related to sweetness liking in infants up to 12 months of age?

Infants become increasingly exposed to sweet-tasting foods in their first year of life. However, it is still unclear whether repeated exposure to sweet taste is linked to infants' sweetness liking during this period. Making use of data from the OPALINE cohort, this study aimed to examine the link between sweetness exposure and sweetness liking during two important periods in early infant feeding: at the start of complementary feeding (3-6 months) and the transition to the family table (10-12 months). Infants' sweetness exposure was assessed using 7-d food records which were completed by mothers every month (n 312), reporting daily consumption rates of formula/breast milk or complementary food and the type of formula milk and/or complementary foods for each feeding occasion. Infants' sweetness liking was studied in the laboratory at 3, 6 and 12 months of age by assessing their response to a lactose-water solution and the amount drunk of this solution compared with plain water. Linear regressions and structural equation model assessed associations between exposure to and liking for sweetness at 6 and 12 months. Neither at 6 (n 182) nor at 12 months (n 197) was sweetness exposure associated with sweetness liking. While sweetness liking at 3 months was unrelated to liking at 6 months, the latter predicted sweetness liking at 12 months. These findings demonstrate no association between sweetness exposure at 3 to 12 months and liking at 6 and 12 months despite a sharp increase in sweetness exposure in that period. However, sweetness liking at 6 and 12 months was positively associated.

Parental feeding practices and parental involvement in child feeding in Denmark: Gender differences and predictors.

Studies about fathers and feeding are scarce and little is known about predictors of parental involvement in child feeding and of paternal feeding practices. Therefore, this study aimed to examine possible differences between Danish mothers and fathers with regard to their feeding practices and involvement in feeding related tasks, and to assess possible parent-related predictors of parental practices and involvement. A total of 261 mothers and 321 fathers of pre-schoolers completed an online survey with items from validated questionnaires. Gender differences were observed; fathers reported using higher levels of coercive control practices, while mothers reported using higher levels of structure practices and autonomy support practices. Both mothers and fathers reported to be highly involved in feeding their child. Regressions showed that a higher concern for child weight and a higher motivation for child preference when buying food were linked to a higher use of coercive control practices while a higher motivation for health control when buying food, cooking confidence, feeding/general self-efficacy and perceived responsibility for feeding were linked to a higher use of structure and autonomy support practices. The results of this study provide valuable insight into maternal and paternal practices in Denmark and their determinants.

Child eating behaviors, parental feeding practices and food shopping motivations during the COVID-19 lockdown in France: (How) did they change?

The COVID-19 pandemic caused France to impose a strict lockdown, affecting families' habits in many domains. This study evaluated possible changes in child eating behaviors, parental feeding practices, and parental motivations when buying food during the lockdown, compared to the period before the lockdown. Parents of 498 children aged 3-12 years (238 boys; M = 7.32; SD = 2.27) completed an online survey with items from validated questionnaires (e.g., CEDQ, CEBQ, HomeSTEAD). They reported on their (child's) current situation during the lockdown, and retrospectively on the period before the lockdown. Many parents reported changes in child eating behaviors, feeding practices, and food shopping motivations. When changes occurred, child appetite, food enjoyment, food responsiveness and emotional overeating significantly increased during the lockdown. Increased child boredom significantly predicted increased food responsiveness, emotional overeating and snack frequency in between meals. When parents changed their practices, they generally became more permissive: less rules, more soothing with food, more child autonomy. They bought pleasurable and sustainable foods more frequently, prepared more home-cooked meals and cooked more with the child. Level of education and increased stress level predicted changes in parental practices and motivations. This study provides insights in factors that can induce positive and negative changes in families' eating, feeding and cooking behaviors. This can stimulate future studies and interventions.

Are food parenting practices gendered? Impact of mothers' and fathers' practices on their child's eating behaviors.

Past research has mainly focused on the links between child eating behaviors and maternal food practices. The impact of fathers and of concordant/discordant food parenting practices within families has received much less attention. To fill this gap, both parents of 105 French children aged 2.01-6.51 years (54 boys, Mage = 3.88 years, SD = 1.40) filled in a survey with items from validated questionnaires. Results showed that fathers and mothers perceived their child's eating behaviors in similar ways (Pearson correlations between 0.34 and 0.78; M = 0.60), despite mothers taking significantly more meals with their child than fathers. Fathers reported using significantly more pressure to eat and food as reward, but reported lower levels of "family meal setting" than mothers. Moderate to high correlations were observed between mothers' and fathers' feeding practices and styles. Regression analyses showed that both maternal and paternal practices and styles were predictors for child eating behaviors. One interaction effect was observed: in households where both parents used higher levels of pressure to eat, the child showed a significantly lower food enjoyment than expected if the effects were additive. Our findings underline the importance of studying the individual role of each parent in child feeding research and that both parents within families should avoid using coercive practices. This could finally stimulate new interventions and recommendations addressed to both parents.

11 and 15-month-old infants do not compensate immediately for energy variation, and no further adjustment occurs 12 or 24 hours later.

Previously, we demonstrated that, in the short term, infants undercompensated for the energy from a preload given 25 min before an ad libitum meal. However, although not consistent, there is evidence in young children that caloric adjustment may occur over longer periods. We investigated the extent to which further energy adjustment occurs up to 24 h after a single meal preceded by preloads of varying energy density (ED) in infants that are 11 and 15 months old. Short-term caloric adjustment was measured in 11- and 15-month-old infants through a preload paradigm meal in the laboratory. To assess their caloric adjustment over longer periods (12 and 24 h), we used 24 h dietary records to evaluate the energy intake (EI) after each visit to the laboratory. Three COMPX scores were calculated according to three different time periods after preload consumption (0 h [i.e., short-term], 12 h or 24 h). Our main result was that, on average, regardless of the time period considered, the infants undercompensated their EI after preload consumption: at 11 and 15 months, caloric adjustment was partial and similar overtime. Considering that a slight repeated imbalance of the energy balance may promote rapid weight gain over the first months, this study calls for further research focusing on facilitators and barriers of efficient appetite control abilities in infancy.

Weanling Infants Prefer the Odors of Green Vegetables, Cheese, and Fish When Their Mothers Consumed These Foods During Pregnancy and/or Lactation.

Infants' olfactory experience begins before birth and extends after birth through milk and complementary foods. Until now, studies on the effects of chemosensory experience in utero and/or through human milk focused on experimentally controlled exposure to only 1 target food bearing a specific odor quality and administered in sizeable amounts. This study aimed to assess whether early olfactory experience effect was measurable in "everyday conditions" of maternal food intake during pregnancy and lactation, and of infant intake at weaning, leading to expose the infant to corresponding odors as fetus, neonate, and infant up to 8 and 12 months of age. Infants' early food exposures were assessed by asking mothers to fill out diaries about their food consumption during pregnancy and breastfeeding, and about their infant's consumption during complementary feeding. To test odor liking, odorants representing a priori pleasant and unpleasant food odors, as well as odorless stimuli, were presented. The infant's exploratory behavior toward odorized bottles and nonodorized control bottles was measured in terms of mouthing duration, which is thought to reflect attraction and/or appetence. At age 8 months only, positive correlations were found between liking of some unpleasant odors and early exposure to these odors through mother's diet. No correlations were found between infants' liking of the pleasant odors and early exposures to the foods bearing these odors. This study highlights that early exposure to unpleasant food odors may increase subsequent liking (or reduce subsequent dislike) of these food odors at least until the age of 8 months.

Caloric compensation ability around the age of 1 year: Interplay with the caregiver-infant mealtime interaction and infant appetitive traits.

Previously, we demonstrated that infants' caloric compensation ability decreases between 11 and 15 months old. Here, we explored whether the inter-individual variation in infants' caloric compensation ability is associated with caregiver-infant interaction during laboratory test meals or with infant appetitive traits. To describe caregiver-infant interaction, we recorded feeding in laboratory ad libitum meals when the infants were 11 and 15 months old by using a connected weighing scale. We extracted the weight of each offered spoonful and the time interval between two spoonfuls. The caloric compensation score (COMPX) was assessed during the same meals. At 11 and 15 months old, the caregiver rated their infant's appetitive traits by completing the CEBQ-T. Student's t tests were applied to test the relationships between the variables describing the caregiver-infant interaction and the COMPX score. The relationships between the COMPX score or its change and the infants' appetitive traits were assessed with Kendall correlations. Regarding appetitive traits, the more the caloric compensation ability decreased between 11 and 15 months old, the more the infants were perceived as food responsive between these ages (τ = -0.36, p = 0.01, n = 28). At 11 months old, when the time interval between two spoonfuls was positively associated with the previous spoonful weight (i.e., a longer time interval after a larger spoonful weight), the infants exhibited a better caloric compensation ability (t = -2.1, p = 0.04, n = 38). Moreover, this study provides new evidence regarding the importance of a responsive feeding style by suggesting that adapting the feeding pace to the spoonful weight could be a favourable practice associated with better caloric compensation ability by the end of the first year. TRIAL REGISTRATION: This trial was registered at clinicals.gov as NCT03409042 (https://clinicaltrials.gov/ct2/show/NCT03409042).

Development of a new questionnaire to assess the links between children's self-regulation of eating and related parental feeding practices.

Young children have an innate ability to self-regulate food intake, driven primarily by hunger and satiety cues, but this ability tends to decrease during early childhood. The study aimed to first examine the development and initial validation of a self-report questionnaire suitable for French samples that assess two dimensions of children's self-regulation of eating (eating in the absence of hunger, poor eating compensation abilities) and potential related parental feeding practices. The second aim was to assess the links between children's self-regulation of eating and parental feeding practices as well as the links between children's self-regulation and children's body mass index. An initial 28-item questionnaire was developed. It included items related to the child's eating in the absence of hunger and eating compensation, which were selected mainly from interviews conducted with 45 mothers, and items related to parental feeding practices selected from existing tools. This questionnaire was then completed by 793 parents. A 21-item questionnaire was validated using a confirmatory factor analysis that showed satisfying fit indices. The structural equation modeling indicated that the use of food as reward was positively associated with eating in the absence of hunger, whereas parental awareness of children's cues was negatively associated with both children's eating in the absence of hunger and poor eating compensation ability. Interestingly, positive associations between eating in the absence of hunger and child's BMI, and between poor eating compensation ability and child's BMI were reported. The current study offered an initial validation of a new questionnaire that combines parental feeding practices and constructs involved in children's self-regulation of eating. Further studies are needed to disentangle these links and their directionality as well as the associations with children's body mass index.

Impact of a front-of-pack nutritional traffic-light label on the nutritional quality and the hedonic value of mid-afternoon snacks chosen by mother-child dyads.

The aim of this study was to assess the impact of a nutritional traffic-light label, the Nutri-Score, on snack choices in mother-child dyads and to assess a potential hedonic cost associated with a change in favour of healthier choices. French mothers and children (n = 95; children's age: 7-11 years) who participated were asked to choose, for themselves and for the other dyad member, a snack composed of one beverage and two food items selected among several products with different nutritional quality. In the first step, the products were presented without any information. In the second step, the products were labelled with the Nutri-Score. Mothers and children were asked to rate their liking for all proposed products before being informed of their nutritional quality. The nutritional quality, the hedonic score, and the estimated budget of the selected snacks were compared before and after labelling. As hypothesized, the Nutri-Score label led to a significant increase in the nutritional quality of the chosen snacks. The budget for the chosen snacks was unchanged or decreased after the nutritional labelling was applied. Children and mothers had significantly lower liking for the snacks after nutritional labelling than before nutritional labelling, suggesting a hedonic cost associated with a change in favour of healthier snack choices. This raises the question of the sustainability of the behavioural change induced by the Nutri-Score label.

Infant Acceptance of Primary Tastes and Fat Emulsion: Developmental Changes and Links with Maternal and Infant Characteristics.

Previous studies on taste acceptance have been conducted taste-by-taste and with a cross-sectional design. The aim of this study was to longitudinally evaluate the acceptance of sweet, salty, bitter, sour and umami solutions, and a fat emulsion comparatively in a birth cohort from 3 to 20 months old. The acceptance of each taste relative to water was defined using proportional variables that are based on ingestion (IR) or liking evaluated by the experimenter (LR). These data were analyzed with mixed models that accounted for age and subject effects (minimum 152 observations/age/taste; maximum 216). For saltiness, acceptance increased sharply between 3 and 12 months old. The trajectories of acceptance were parallel for sweetness, sourness, and the umami tastes between 3 and 20 months old, with sweetness being preferred. Between 12 and 20 months old, the acceptance of all tastes, except bitterness, decreased, and at 20 months old, only sweetness was not rejected. The acceptance of bitterness remained stable. For the fat emulsion, acceptance evolved from indifference to rejection. The acceptance of saltiness and umami tastes were lower in girls than boys at 20 months old. The acceptance of the fat emulsion was higher in infants who were born heavier and taller. At 20 months old, the fat emulsion acceptance was higher in infants who were born from mothers with a higher prepregnancy body mass index. Finally, the taste differential reactivity (the standard deviation of the IRs) significantly increased from 3 to 20 months old.

Infant Dietary Exposures to Sweetness and Fattiness Increase during the First Year of Life and Are Associated with Feeding Practices.

BACKGROUND: Taste is a strong determinant of food intake. Previous research has suggested that early taste exposures could influence preferences and later eating behavior, but little is known about the factors related to this. OBJECTIVES: The aims of this study were to describe infants' exposure to sweetness and fattiness and to examine whether maternal and infant characteristics and feeding practices are related to these exposures in participants from the OPALINE [Observatoire des Préférences Alimentaires du Nourrisson et de l'Enfant (Observatory of Infant and Child Food Preferences)] cohort study. METHODS: Food consumption frequency was assessed with a 7-d food record completed monthly over the first year. Dietary taste exposure was defined by the consumption frequency of each food multiplied by the intensity of its taste, summed over all foods. The daily sweetness exposure (SweetExp) and fattiness exposure (FatExp) were calculated at 3-6, 7-9, and 10-12 mo of age for 268 infants from complementary feeding initiation (CFI) to 12 mo. Associations between taste exposure and potential factors were tested by multiple linear regressions. RESULTS: Both FatExp and SweetExp increased from 3-6 mo to 10-12 mo (mean ± SD: 7.5 ± 2.3 to 12.2 ± 2.5 and 6.8 ± 2.8 to 14.7 ± 4.1, respectively). Breastfeeding duration ≥6 mo was associated with higher SweetExp at all ages, with a decreasing ß [ß (95% CI): 2.6 (1.8; 3.4) at 3-6 mo and 1.3 (0.1; 2.4) at 10-12 mo]. CFI at <6 mo was associated with higher SweetExp at all ages but with higher FatExp only at 3-6 mo. Higher SweetExp and FatExp were associated with a higher use of all complementary food types. Boys were more likely to be exposed to SweetExp at 10-12 mo and to FatExp at 3-6 mo and 10-12 mo than were girls. Maternal higher education attainment and return to work after 6 mo were linked with higher FatExp and higher FatExp and SweetExp, respectively. CONCLUSION: SweetExp and FatExp increased from CFI until 12 mo and were associated with feeding practices in OPALINE infants. Studying early taste exposure longitudinally should provide new insights regarding the development of food preferences.

Early determinants of food liking among 5y-old children: a longitudinal study from the EDEN mother-child cohort.

BACKGROUND: Identifying the determinants of child's liking for different foods may help to prevent future choices of unhealthy food. OBJECTIVE: To study early-life food-related characteristics associated with child's liking for different foods at 5y with a longitudinal study. DESIGN: 1142 5y- old children completed a liking test for "fruit and vegetables", "meat, fish and eggs", desserts and cheese. Data related to maternal food intake before pregnancy, infant feeding during the first year of life, maternal feeding practices at 2y, child's food intake at 3y, and child's food neophobia from 1 to 4y were collected prospectively from the mother. The associations between these factors and child's liking for each category of foods were analyzed using structural equation modelling. RESULTS: High food neophobia at 4 y was related to lower child's liking for all food groups. Maternal feeding practices at 2y were associated with liking for dessert: negatively for the practices allowing child to control his/her own food intake, positively for restriction of child's food intake for weight reasons. Moreover, child's food intake at 3y was positively associated with child's liking for "fruit and vegetables" as well as for cheese. Finally, adherence to the infant feeding pattern "long breastfeeding, later introduction of main meal components and use of home-made products" was positively associated with child's liking for meat/fish/eggs. CONCLUSIONS: For all food groups, food neophobia was a common determinant of child's liking for food at 5y, whereas other factors were associated with food liking for specific food groups.

Smell differential reactivity, but not taste differential reactivity, is related to food neophobia in toddlers.

Previous research has identified relationships between chemosensory reactivity and food neophobia in children. However, most studies have investigated this relationship using declarative data and without separately analysing smell and taste reactivity. Our first objective was to assess the relationships between smell and taste differential reactivity in toddlers (i.e. reactivity towards several stimuli), using experimental behavioural measurements. The second objective was to determine the relationships between smell (or taste) differential reactivity and food neophobia in toddlers, with the hypothesis that the more responsive a toddler was across food odours or tastes, the more neophobic s/he would be. An additional objective was to determine whether the potential relationships between smell (or taste) differential reactivity and food neophobia differ according to gender. One hundred and twenty-three toddlers aged from 20 to 22 months from the Opaline birth cohort (Observatory of Food Preferences in Infants and Children) were involved. A questionnaire was used to assess child's food neophobia. Toddlers' differential reactivity for smell (and for taste) was defined as the variability of behavioural responses over 8 odorants, and over the five basic tastes. Smell and taste differential reactivities were not correlated. Food neophobia scores were modestly but significantly positively correlated with smell differential reactivity but not with taste differential reactivity. When gender was considered, smell reactivity and neophobia were correlated only among boys. This indicates the need to study smell and taste reactivity separately to determine their associations with eating behaviours. This suggests that the rejection of novel foods in neophobic boys could be partly due to food odour. This finding is new and clearly requires further investigation.

'Just a pinch of salt'. An experimental comparison of the effect of repeated exposure and flavor-flavor learning with salt or spice on vegetable acceptance in toddlers.

Children's vegetable intake is below the recommended amounts. No studies to date have tested the relevance of using salt or spices to increase children's vegetable acceptance. Our objective was to compare the effect of repeated exposure (RE) and of flavor-flavor learning (FFL) on toddlers' acceptance of a non-familiar vegetable. Two unconditioned stimuli were used: salt and a salt-associated spice. Toddlers attending six nurseries were assigned to 3 groups in a between subject design. Groups were exposed 8 times to a basic salsify puree (0.2% salt w/w; RE group; n = 47), a salty salsify puree (0.5% salt w/w; FFL-Salt group; n = 54) or a spiced salsify puree (0.2% salt and 0.02% nutmeg w/w; FFL-Nutmeg group; n = 50). Acceptance (intake and liking) of the target vegetable (basic salsify puree) and of a control vegetable (carrot puree) was evaluated at pre-exposure, at each exposure of the learning period, at post-exposure, and at 1, 3 and 6 months after exposure. In all groups, intake of the target vegetable increased from pre- to post-exposure. This increase was significantly higher in the RE group (64 ± 11 g) than in the FFL-Salt group (23 ± 11 g) and marginally higher than in the FFL-Nutmeg group (36 ± 11 g). No difference between groups was observed on the increase in liking of the target vegetable from pre- to post-exposure. The increase of the target vegetable intake was still observed after 6 months for all groups. Thus, repeated exposure appears to be the simplest choice to increase vegetable intake on the short and long term in toddlers.

Infant feeding practices and body mass index up to 7.5 years in the French nationwide ELFE study.

BACKGROUND/OBJECTIVES: The infant diet represents one of the main modifiable determinants of early growth. This study aimed to investigate the associations of infant feeding practices with body mass index (BMI) until 7.5 years. SUBJECTS/METHODS: Analyses were based on data from the French nationwide ELFE birth cohort. Data on breastfeeding (BF) and complementary feeding (CF) were collected monthly from 2 to 10 months. Infant feeding practices were characterized using principal component analyses (PCA) and hierarchical ascendant classification. BMI z-score was computed at 1, 2, 3, 5 and 7.5 years, from data collected in the child's health booklet; 7.5-year overweight was defined according to IOTF references. Associations between infant feeding practices and BMI were investigated by linear regression models adjusted for main confounders. RESULTS: Ever breastfeeding was not associated with BMI up to 7.5 years. Compared to intermediate breastfeeding duration (1 to <3 months), longer breastfeeding duration (≥6 months) was related to lower 1-year BMI, but not at older ages. Compared to the recommended age at CF introduction (4-6 months), early CF (<4 months) was related to higher BMI up to 5 years with a similar trend at 7.5 years, but not to the risk of overweight. The PCA patterns characterized by early baby cereal introduction and late food pieces introduction or by frequent intake of main food groups were related to a lower BMI up to 7.5 years. CONCLUSION: Breastfeeding was related with a lower BMI in infancy but not thereafter, whereas an early CF initiation (<4 months) was associated with a higher BMI in childhood.

Repeated exposure of infants at complementary feeding to a vegetable puree increases acceptance as effectively as flavor-flavor learning and more effectively than flavor-nutrient learning.

Children's vegetable consumption is below the public health recommendations. This study aimed to compare learning mechanisms to increase vegetable acceptance in infants at complementary feeding, namely repeated exposure (RE), flavor-flavor learning (FFL), and flavor-nutrient learning (FNL); measure the stability of the learning effect; and examine the impact of infants' feeding history on vegetable acceptance. The study was composed of a preexposure test, an exposure period, a postexposure test, and tests at 2-wk, 3-mo, and 6-mo follow-ups. At pre- and postexposure, a basic artichoke purée and carrot purée were presented to 95 French infants (6.4 ± 0.8 mo). During the exposure period, infants were randomly split into 3 groups and were exposed 10 times to the basic (RE group; 2 kJ/g; n = 32), a sweet (FFL group; 2 kJ/g; n = 32), or an energy-dense (FNL group; 6 kJ/g; n = 31) artichoke purée 2 or 3 times/wk. To evaluate acceptance, intake (g) and liking were recorded at home by parents. Between pre- and postexposure, intake of the basic artichoke purée significantly increased in the RE (+63%) and FFL (+39%) groups but not in the FNL group; liking increased only in the RE group (+21%). After exposure, artichoke was as much consumed and as much liked as carrot only in the RE group. Learning of artichoke acceptance was stable up to 3 mo postexposure. Initial artichoke intake was significantly related to the number of vegetables offered before the study started. RE is as effective as and simpler to implement than FFL and more effective than FNL for increasing vegetable acceptance at complementary feeding.

Breast-feeding duration: influence on taste acceptance over the first year of life.

Early feeding experiences, e.g. related to milk feeding, can affect later food and taste preferences. However, consequences of breast-feeding on taste acceptance are under-investigated. The objective of the present study was to examine the impact of exclusive breast-feeding duration (DEB) on taste acceptance at 6 and 12 months in the same infants (n 122). Mothers recorded the DEB. Acceptance of solutions of each of the five basic tastes relative to water was evaluated in the laboratory at 6 and 12 months by the ingestion ratio (IR). Kendall correlations were calculated between the DEB and the IR. Only 16 % completed at least 6 months of exclusive breast-feeding; 79 % had begun complementary feeding by 6 months. At 6 months, infants preferred sweet, salty and umami solutions over water and were indifferent to sour and bitter solutions. The longer an infant was breast-fed, the more s/he accepted the umami solution at 6 months. At 12 months, infants preferred sweet and salty solutions over water and were indifferent to sour, bitter and umami solutions. The relationship between the DEB and acceptance of the umami solution was not observed at 12 months. No relationship was observed between the DEB and sweet, salty, sour and bitter taste acceptance at 6 or 12 months. The association between the DEB and umami taste acceptance at 6 months may relate to the higher glutamate content of human milk compared with formula milk. Beyond the acknowledged metabolic benefits of breast-feeding, this suggests that prolonged breast-feeding could also be associated with an impact on sensory preference at the beginning of complementary feeding.

Salivary protein profiles and sensitivity to the bitter taste of caffeine.

The interindividual variation in the sensitivity to bitterness is attributed in part to genetic polymorphism at the taste receptor level, but other factors, such as saliva composition, might be involved. In order to investigate this, 2 groups of subjects (hyposensitive, hypersensitive) were selected from 29 healthy male volunteers based on their detection thresholds for caffeine, and their salivary proteome composition was compared. Abundance of 26 of the 255 spots detected on saliva electrophoretic patterns was significantly different between hypo- and hypersensitive subjects. Saliva of hypersensitive subjects contained higher levels of amylase fragments, immunoglobulins, and serum albumin and/or serum albumin fragments. It also contained lower levels of cystatin SN, an inhibitor of protease. The results suggest that proteolysis occurring within the oral cavity is an important perireceptor factor associated to the sensitivity to the bitter taste of caffeine.

Links between maternal feeding practices and children's eating difficulties. Validation of French tools.

The main objectives of the present study were to validate measures of young children's eating difficulties and maternal feeding practices in a French sample, as well as to assess the links between these practices and children's eating difficulties. Mothers (n=502) of French children aged 20-36 months completed four questionnaires that were validated using a Structural Equation Modelling approach. Links between children and maternal components were investigated using a PLS regression. The Children's Eating Difficulties Questionnaire yielded a 4-dimension solution: Neophobia, Pickiness, Low Appetite and Low Enjoyment in food. The Feeding Style Questionnaire assessed three dimensions: Authoritarian, Authoritative and Permissive Styles. The Feeding Strategy Questionnaire, designed to evaluate strategies used by mothers to make their child taste rejected foods, resulted in four factors: Coercion, Explanation, Contingency and Preference. The Questionnaire relating to Parental Motivations when buying food for children presented a 6-dimension solution: Convenience, Weight-control, Natural, Health-concern, Preference and Price. The factors associated positively with the four dimensions of the Children's Eating Difficulties Questionnaire were on the one hand Permissive Style and Practices to fulfil child's desires, and on the other hand Authoritarian Style, Contingent and Coercive Practices aimed at forcing children to taste rejected foods.

Inhibition and shifting across the weight status spectrum.

Executive functioning (EF) is of major interest in the study of cognitive factors involved in obesity. Among EF, shifting is related to behavioral flexibility, and inhibition to the ability to refrain from impulsive behavior. A deficit in those two EF could predict individual difficulties to maintain a healthy lifestyle. Weak evidence of deficits in shifting and inhibition in individuals of higher Body Mass Index (BMI) have been observed. The objective was to clarify the relationship between inhibition and shifting regarding weight status group differences in healthy adults. Two neuropsychological tests from the Test of Attentional Performance (TAP) battery were used to measure EF performance of three groups of men and women: normal-weight (NW, n = 38), overweight (OW, n = 40) and obesity (OB, n = 37). The results show that individuals with higher BMI have lower inhibition capacities and that classically used weight status categories might not capture cognitive variability. No differences in shifting were observed concerning weight status nor BMI. This paper provides new insights on cognitive factors in obesity by presenting data from healthy individuals with overweight and obesity. The results support that assessing inhibition capacities might be of interest in a clinical setting for patients with difficulties to lose weight.