Does eating more protein or less carbs help you lose weight faster?
Does a Higher Protein Diet Promote Satiety and Weight Loss Independent of Carbohydrate Content? An 8-Week Low-Energy Diet (LED) Intervention
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists tested if eating more protein or fewer carbs helps overweight women lose more weight on a low-calorie diet with meal replacements.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
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Evidence Score
Participants are randomly assigned to treatment or control groups, minimizing bias. Considered the gold standard for testing whether an intervention causes an effect.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists tested if eating more protein or fewer carbs helps overweight women lose more weight on a low-calorie diet with meal replacements.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 569 / 90
Evidence Score
Participants are randomly assigned to treatment or control groups, minimizing bias. Considered the gold standard for testing whether an intervention causes an effect.
Publication
Authors
Lim JJ, Liu Y, Lu LW, Barnett D, Sequeira IR, Poppitt SD
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Women with obesity who follow an 8-week low-energy diet with partial meal replacement lose an average of 7.5 kilograms, with 80% of the weight loss coming from fat mass and 20% from fat-free mass, regardless of whether protein intake is increased or carbohydrate intake is reduced within the specified ranges.
In women with obesity following an 8-week low-calorie diet that includes meal replacements, increasing protein intake or reducing carbohydrate intake does not change the levels of the appetite-regulating hormones GLP-1 and PYY in the blood during fasting or after eating.
In women with obesity, lowering carbohydrate intake from 40% to 28% of total calories increases fullness after meals, but does not result in eating fewer calories overall or losing more weight.
For women with obesity following an 8-week low-calorie diet that includes partial meal replacement, raising protein intake from 0.8 to 1.2 grams per kilogram of body weight does not lead to measurable differences in feelings of fullness after meals, loss of body fat, or preservation of muscle mass.
In women with obesity, eating fewer calories through a diet that replaces some meals with structured replacements lowers blood sugar, insulin, and GIP levels, regardless of how much protein or carbohydrate is in the diet.