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1.
PLoS One ; 17(1): e0261446, 2022.
Article in English | MEDLINE | ID: mdl-34986194

ABSTRACT

AIM: To study the possible effects of a dietary intervention with minimal and unprocessed foods, high in natural saturated fats on the lipid profile and body mass index of children. METHOD: This study combines three intervention studies; one non-randomized retrospective cohort study and two randomized controlled trials, to a pooled analysis. The intervention group received a dietary intervention of minimal and unprocessed foods for three to six months, consisting of five times per week green vegetables, three times per week beef, daily 200-300 mL whole cow's milk (3.4% fat) and whole dairy butter (80% fat) on each slice of bread. The control group continued their usual dietary habits. Raw data of the three intervention studies where combined into one single dataset for data analysis, using mixed effects analysis of covariance to test the effects of the dietary advice on the main study outcomes, which are measurements of the lipid profile. RESULTS: In total, 267 children aged 1 to 16 years were followed. 135 children were included in the intervention group and 139 children in the control group. Characteristics (age, gender and follow-up period) were equally distributed between the groups at baseline. In the intervention group HDL-cholesterol increased significantly from 1.22 mmol/L, 95% confidence interval (CI) 1.14-1.32 to 1.42 mmol/L 95% CI 1.30-1.65 (p = 0.007). The increase over time in HDL cholesterol in the intervention group was significantly different compared to the increase in the control group (from 1.26 mmol/L, 95% CI 1.19-1.35, to 1.30 mmol/L, 95% CI 1.26-1.37) (p = 0.04). Due to the increased HDL concentration in the intervention group, the total cholesterol/HDL cholesterol ratio decreased significantly from 3.70 mmol/L, 95% CI 3.38-3.87, to 3.25 mmol/L, 95% CI 2.96-3.31 (p = 0.05). CONCLUSION: Consumption of minimal and unprocessed foods (high in natural saturated fats) has favourable effects on HDL cholesterol in children. Therefore, this dietary advice can safely be recommended to children.


Subject(s)
Cholesterol, HDL/metabolism , Diet Therapy/methods , Dietary Fats/adverse effects , Adolescent , Body Mass Index , Child , Child, Preschool , Cholesterol, LDL/metabolism , Cohort Studies , Diet/adverse effects , Diet Therapy/psychology , Energy Intake , Fatty Acids , Feeding Behavior , Female , Humans , Infant , Lipid Metabolism/physiology , Lipidomics/methods , Lipids/physiology , Male , Randomized Controlled Trials as Topic , Retrospective Studies
2.
Crit Rev Food Sci Nutr ; 61(16): 2691-2704, 2021.
Article in English | MEDLINE | ID: mdl-32648776

ABSTRACT

PURPOSE: Upper respiratory tract infections are common in children and adults. Antiviral treatments are only available for specific groups of patients, stimulating the distribution of over-the-counter medication to relieve the symptoms for the other patients. Studies about whole foods and their effect on the incidence and duration of upper respiratory tract infections were reviewed. METHODS: Randomized controlled trials and case-control studies available on MEDLINE, Web of Science, Cochrane Library and Embase were included. RESULTS AND CONCLUSIONS: Thirty-three studies were included. The incidence of respiratory infections or symptoms was shown to be reduced in some studies when probiotics, prebiotics, growing-up milk, fish oil, kiwi, garlic and xylitol were taken. Duration was favorably influenced by the intake of elderberry, kiwi, probiotics and fish oil. When the risk of bias and repetition is taken into account, probiotics and elderberry repeatedly show favorable effects. Prudent conclusions can be made in selective patient groups. However, the studies were diverse and were only performed by a few study groups.


Subject(s)
Probiotics , Respiratory Tract Infections , Adult , Animals , Child , Humans , Incidence , Milk , Prebiotics , Respiratory Tract Infections/drug therapy , Respiratory Tract Infections/epidemiology
3.
Nutrients ; 9(5)2017 May 19.
Article in English | MEDLINE | ID: mdl-28534861

ABSTRACT

In children, little is known about lipid profiles and the influence of dietary habits. In the past, we developed a dietary advice for optimizing the immune system, which comprised green vegetables, beef, whole milk, and full-fat butter. However, there are concerns about a possible negative influence of the full-fat dairy products of the diet on the lipid profile. We investigated the effect of the developed dietary advice on the lipid profile and BMI (body mass index)/BMI-z-score of children. In this retrospective cohort study, we included children aged 1-16 years, of whom a lipid profile was determined in the period between June 2011 and November 2013 in our hospital. Children who adhered to the dietary advice were assigned to the exposed group and the remaining children were assigned to the unexposed group. After following the dietary advice for at least three months, there was a statistically significant reduction in the cholesterol/HDL (high-density lipoproteins) ratio (p < 0.001) and non-HDL-cholesterol (p = 0.044) and a statistically significant increase in the HDL-cholesterol (p = 0.009) in the exposed group, while there was no difference in the BMI and BMI z-scores. The dietary advice has no adverse effect on the lipid profile, BMI, and BMI z-scores in children, but has a significant beneficial effect on the cholesterol/HDL ratio, non-HDL-cholesterol, and the HDL-cholesterol.


Subject(s)
Dairy Products/adverse effects , Diet/adverse effects , Dietary Fats/adverse effects , Lipids/blood , Milk/chemistry , Adolescent , Animals , Child , Child, Preschool , Cholesterol, HDL/blood , Dietary Fats/administration & dosage , Feeding Behavior/physiology , Female , Humans , Infant , Lipoproteins/blood , Male , Red Meat/adverse effects , Retrospective Studies , Vegetables/adverse effects
4.
Nutrients ; 7(3): 1965-77, 2015 Mar 13.
Article in English | MEDLINE | ID: mdl-25781221

ABSTRACT

Many children deal with fatigue for which no proper treatment can be given. A possible explanation for their fatigue is a micro deficiency of minerals and vitamins. In this non-randomized controlled trial, we clinically evaluated symptoms of fatigue in children for whom a nutrient-rich diet was advised. A group of 98 children (2-18 years old) with unexplained symptoms of fatigue was examined. The dietary modifications consisted of green vegetables, beef, whole milk and full-fat butter. Children in the intervention group were asked to follow the diet for three months, whereas the control-group followed their normal diet. The primary outcome was symptoms of fatigue, as determined by a PedsQL Multidimensional Fatigue Scale, and secondary outcomes were compliance with the diet and BMI. Children, who followed the diet showed a significant decrease in the need to sleep (CI 0.83; 14.86, p = 0.03). They slept better through the night and took fewer naps. When analyzing components of the advised diet separately, a significant larger decrease in cognitive fatigue symptoms was seen for eating green vegetables according to the diet guidelines (CI 2.27; 30.63, p = 0.024). Furthermore, a lower need to sleep was seen when whole milk was consumed almost daily (CI 0.02; 14.62, p = 0.049). Our study showed that nutritional advice is an elegant, and effective method for decreasing some symptoms of medically unresolved fatigue in children.


Subject(s)
Diet , Fatigue/diet therapy , Feeding Behavior , Animals , Body Mass Index , Child , Child, Preschool , Cognition , Female , Fruit , Humans , Male , Milk , Minerals , Nutrition Policy , Patient Compliance , Sleep , Vegetables , Vitamins
5.
Int J Vitam Nutr Res ; 84(5-6): 310-9, 2014.
Article in English | MEDLINE | ID: mdl-26255552

ABSTRACT

BACKGROUND: Non-specific elevated IgE and allergies are common in children, and their prevalence is increasing. Dietary changes could be an explanation for this increase. Zinc, iron, vitamins A, C and E, and polyunsaturated fatty acids all play possible roles in the etiology and possible treatment of allergies due to their numerous immunomodulating properties. OBJECTIVES: To investigate the immunomodulating effect of recommending a nutrient-rich diet consisting of green vegetables, beef, whole milk and full-fat butter. METHODS: We conducted a case-controlled, non-randomized, retrospective study. Children between the ages of 1 and 18 years with non-specific elevated IgE were included. Baseline and follow-up measurements of serum total IgE and clinical outcomes were retrospectively collected and compared for 49 children who received the dietary advice (to eat green vegetables, beef, whole milk and full-fat butter) and 56 children who did not. RESULTS: The initial analysis showed a significantly greater decrease in IgE in the intervention group compared to the control group; a 9.2 kU/l versus a 0.1 kU/l decrease, respectively (P = 0.02). When supplement (vitamin D) use was taken into account, however, no significant difference was produced by the dietary effect alone (unstandardized coefficient = 71.3 kU/l, P = 0.16). 53.2 % of participants in the intervention group reported considerable improvement in symptoms versus 28.6 % in the control group (P < 0.001). CONCLUSION: Overall, the effects of nutrients and vitamins on the decrease in IgE are promising. The separate contributions of dietary advice and/or supplements need to be investigated in the future.


Subject(s)
Butter , Child Nutritional Physiological Phenomena/immunology , Immunomodulation , Meat , Milk , Vegetables , Adolescent , Animals , Case-Control Studies , Cattle , Child , Child, Preschool , Diet , Dietary Supplements , Female , Humans , Immunoglobulin E/blood , Infant , Male , Retrospective Studies , Vitamin D/administration & dosage , Vitamin D/pharmacology
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