Review of Validated Methods to Evaluate Diet History in Diet Therapy and Counselling: An Overview and Analysis of Screeners Based on Food-Based Dietary Guidelines.

Evidence-based dietetic practice calls for systematically developed assessment methods for nutritional assessment in dietetic counselling and therapy (DCT). Screeners can provide a quick and easy way to determine a client's diet quality and contribute to quality assurance in DCT. The aim of this systematic review was to give a comparative overview of screeners based on national food-based dietary guidelines (FBDGs) and to derive recommendations for developing an FBDG-based screener for DCT. The literature search in PubMed (MEDLINE), embase and Web of Science was conducted between May and July 2022, and updated in March 2023, in accordance with the consensus-based standards for the selection of health measurement instruments (COSMIN). The analysis focused on characteristics of screener design and measurement properties for screener testing. In total, 13 studies on 11 screeners based on FBDGs were included; 7 screeners were targeted to DCT. The content and scoring of screeners were based on the corresponding national FBDGs. The validity and/or reliability of screeners were investigated in 11 studies; responsiveness was not tested for any screener and practicality was considered in all studies. Based on the screeners reviewed, a systematic rationale to develop, enhance and test screeners based on national FBDGs was established.

Concept of an Intervention for Sustainable Weight Loss in Postmenopausal Women with Overweight-Secondary Analysis of a Randomized Dietary Intervention Study.

INTRODUCTION: The approach of an individual diet has great potential for sustainable weight reduction. Social support, participation and empowerment are also key factors for high motivation and compliance. So, the impact of an individual diet in combination with group sessions on weight loss in postmenopausal women with overweight was investigated. METHODS: In this reanalysis of a controlled intervention study, postmenopausal women (n = 54; BMI 30.9 ± 3.4 kg/m2; 59 ± 7 years) were recruited receiving an energy restricted diet for 12 weeks, followed by a six-month follow-up phase. The women received 51 individual meal plans based on their habits and were trained in four group sessions. RESULTS: Forty-six women completed the intervention phase, and 29 completed the follow-up. Average weight loss was -5.8 ± 3.0 kg (p < 0.001) after 12 weeks and was still significant at follow-up (-4.9 ± 5.4 kg, p < 0.001). Also, decreases in fat-free mass (-1.1 ± 1.2 kg, p < 0.001) and resting energy expenditure (-1096 ± 439 kJ/24 h, p < 0.001) were observed. CONCLUSIONS: The individual nutrition approach with a focus on nutritype in combination with group sessions was effective for long-lasting weight loss in postmenopausal women. An important factor is close individual and group support.

Impact of Protein Intake during Weight Loss on Preservation of Fat-Free Mass, Resting Energy Expenditure, and Physical Function in Overweight Postmenopausal Women: A Randomized Controlled Trial.

INTRODUCTION: Weight loss in old age increases the risk of sarcopenia caused by the age-related reduction of fat-free mass (FFM). Due to the strong correlation between FFM and resting energy expenditure (REE), the maintenance of this must also be considered. Besides, the physical function (PF) must be maintained. OBJECTIVE: The impact of protein intake on changes in FFM, REE, and PF during weight loss in overweight postmenopausal women was investigated. METHODS: Fifty-four postmenopausal women (BMI 30.9 ± 3.4; age 59 ± 7 years) were randomized into 2 groups receiving energy-restricted diets with either 0.8 g (normal protein; NP) or 1.5 g protein/kg body weight (high protein; HP) for 12 weeks, followed by a 6-month follow-up phase with an ad libitum food intake. FFM, REE, and PF (strength, endurance, and balance) were measured at baseline, after weight loss, and after follow-up. RESULTS: Forty-six women completed the weight loss intervention and 29 were followed up. The weight loss was -4.6 ± 3.6 kg (HP) and -5.2 ± 3.4 kg (NP; both p < 0.001) and the weight regain during follow-up was 1.3 ± 2.8 kg (HP; p = 0.03) and 0.4 ± 2.5 kg (NP; p = 0.39), with no differences between groups. Similar decreases in FFM (-0.9 ± 1.1 [HP] vs. -1.0 ± 1.3 kg [NP]) and REE (-862 ± 569 [HP] vs. -1,000 ± 561 kJ [NP]; both p < 0.001) were observed in both groups. During follow-up, no changes in FFM were detected in either group, whereas in the NP group the REE increased again (+138 ± 296; p = 0.02). The main determinants of FFM loss were the energy deficit and the speed of weight loss. In the NP group, the Short Physical Performance Battery score improved with weight loss (+0.6 ± 0.8; p < 0.001) and handgrip strength decreased (-1.7 ± 3.4 kg; p < 0.001), whereas no changes were observed in the HP group. CONCLUSIONS: An HP weight-loss diet without exercise had no impact on preservation of FFM and REE but may help to maintain muscle strength in postmenopausal women.

Nutrition assessment in process-driven, personalized dietetic intervention - The potential importance of assessing behavioural components to improve behavioural change: Results of the EU-funded IMPECD project.

BACKGROUND & AIMS: Although up-to-date definitions for nutrition assessment integrate behavioural components, it is not clear what behavioural components are to be assessed. Since behavioural modification is linked to effective therapeutic dietetic interventions, assessing behaviour and factors influencing behaviour might be beneficial to improve personalized dietetic outcome. The aim of the following report is to emphasize the role of behavioural components and factors affecting behaviour at baseline nutrition assessment in personalized dietetic intervention. METHODS: The present work is part of the EU-funded project IMPECD ("Improvement of Education and Competences in Dietetics", www.impecd.eu). The project aims to improve the clarity and consistency of national dietetic process models to unify education and training of future dietitians. Experts from five European Universities of Applied Sciences (UAS) in Antwerp (BE), Fulda (DE), Groningen (NL), Neubrandenburg (DE) and St. Pölten (AT) developed a Massive Open Online Course (MOOC) consisting of several clinical cases. It warranted a detailed evaluation of all dietetic care process steps, starting with nutrition assessment. RESULTS: Results for motivation assessed during nutrition assessment are not consistently positively associated with outcome and the added value of assessing them at baseline is still unclear. However, depressive symptoms, emotional distress, and anxiety negatively affect eating and physical activity and therefore limit the efficacy of the dietetic intervention. Assessing behavioural components including nutrition literacy is an important precondition for influence on behavioural modification. CONCLUSION: Indisputably, baseline assessment of behavioural components and factors influencing behaviour are important to increase the therapeutic efficacy of personalized dietetic interventions.