Nutrient adequacy during weight loss interventions: a randomized study in women comparing the dietary intake in a meal replacement group with a traditional food groupReportar como inadecuado




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Nutrition Journal

, 6:12

First Online: 25 June 2007Received: 28 December 2006Accepted: 25 June 2007

Abstract

BackgroundSafe and effective weight control strategies are needed to stem the current obesity epidemic. The objective of this one-year study was to document and compare the macronutrient and micronutrient levels in the foods chosen by women following two different weight reduction interventions.

MethodsNinety-six generally healthy overweight or obese women ages 25–50 years; BMI 25–35 kg-m were randomized into a Traditional Food group TFG or a Meal Replacement Group MRG incorporating 1–2 meal replacement drinks or bars per day. Both groups had an energy-restricted goal of 5400 kJ-day. Dietary intake data was obtained using 3-Day Food records kept by the subjects at baseline, 6 months and one-year. For more uniform comparisons between groups, each diet intervention consisted of 18 small group sessions led by the same Registered Dietitian.

ResultsWeight loss for the 73% n = 70 completing this one-year study was not significantly different between the groups, but was significantly different p ≤ .05 within each group with a mean ± standard deviation weight loss of -6.1 ± 6.7 kg TFG, n = 35 vs -5.0 ± 4.9 kg MRG, n = 35. Both groups had macronutrient Carbohydrate:Protein:Fat ratios that were within the ranges recommended 50:19:31, TFG vs 55:16:29, MRG. Their reported reduced energy intake was similar 5729 ± 1424 kJ, TFG vs 5993 ± 2016 kJ, MRG. There was an improved dietary intake pattern in both groups as indicated by decreased intake of saturated fat ≤ 10%, cholesterol <200 mg-day, and sodium < 2400 mg-day, with increased total servings-day of fruits and vegetables 4.0 ± 2.2, TFG vs 4.6 ± 3.2, MRG. However, the TFG had a significantly lower dietary intake of several vitamins and minerals compared to the MRG and was at greater risk for inadequate intake.

ConclusionIn this one-year university-based intervention, both dietitian-led groups successfully lost weight while improving overall dietary adequacy. The group incorporating fortified meal replacements tended to have a more adequate essential nutrient intake compared to the group following a more traditional food group diet. This study supports the need to incorporate fortified foods and-or dietary supplements while following an energy-restricted diet for weight loss.

Judith M Ashley, Holly Herzog, Sharon Clodfelter, Vicki Bovee, Jon Schrage and Chris Pritsos contributed equally to this work.

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Autor: Judith M Ashley - Holly Herzog - Sharon Clodfelter - Vicki Bovee - Jon Schrage - Chris Pritsos

Fuente: https://link.springer.com/







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