Equivalent reductions in body weight during the Beef WISE Study: beef's role in weight improvement, satisfaction and energy

摘要

Summary Objective The objective of this randomized equivalence trial was to determine the impact of consuming lean beef as part of a high protein (HP) weight-reducing diet on changes in body weight, body composition and cardiometabolic health. Methods A total of 120 adults (99 female) with overweight or obesity (BMI: 35.7 ???± 7.0 kg m ?￠????2 ) were randomly assigned to consume either a HP diet with ?￠???￥4 weekly servings of lean beef (B; n = 60) or a HP diet restricted in all red meats (NB; n = 60) during a 16-week weight loss intervention. Results Body weight was reduced by 7.8 ???± 5.9% in B and 7.7 ???± 5.5% in NB ( p < 0.01 for both). Changes in percent body weight were equivalent between B and NB (mean difference: 0.06%, 90% confidence interval: (?￠????1.7, 1.8)). Fat mass was reduced in both groups ( p < 0.01; B: 8.0 ???± 0.6 kg, NB: 8.6 ???± 0.6 kg), while lean mass was not reduced in either group. Improvements in markers of cardiometabolic health (total cholesterol, low-density lipoprotein cholesterol, triglycerides and blood pressure) were not different between B and NB. Conclusion Results of this study demonstrate that HP diets ?￠???? either rich or restricted in red meat intakes ?￠???? are effective for decreasing body weight and improving body composition and cardiometabolic health.