Research

Hormonal

African American women with obesity and low insulin sensitivity lose significantly more fat mass and maintain higher total energy expenditure when following a low-carbohydrate diet compared to a low-fat diet.

If you are an African American woman with obesity and have struggled to lose weight on standard low-fat diets, switching to a low-carbohydrate approach (around 20% carbs, 55% fat) may help you lose more fat and keep your metabolism higher. This benefit is specifically linked to having lower insulin sensitivity, which is common in this demographic. Focus on whole foods, complex carbohydrates, and healthy fats while maintaining a caloric deficit.

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A low-CHO diet leads to a greater FM loss in AA women with obesity and low SI, likely by minimizing the reduction in EE that follows weight loss.
Cátia Martins et al. · Obesity · 2025

Why this rating

Randomized controlled trial with controlled feeding, gold-standard metabolic measurements (IVGTT, DLW), but limited to a specific demographic (AA women) and moderate sample size (n=50 analyzed).

Source

The impact of a low‐carbohydrate (vs. low‐fat) diet on fat mass loss in <scp>African American</scp> women is modulated by insulin sensitivity

Cátia Martins et al. · Obesity · 2025

DOI 10.1002/oby.24201

rct · n=69Cited 6×
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DOI resolved against Crossref · corpus check 2026-06-10

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