Research

Hormonal

VLCKD improves glycemic profiles (fasting glucose, HbA1c, HOMA-IR) and lipid profiles (triglycerides, total cholesterol) significantly, with some improvements (glycemia, LDL) being similar to other weight loss interventions.

You can expect your blood sugar, insulin resistance, and cholesterol numbers to improve significantly on VLCKD. However, for these specific metabolic markers, the improvement is comparable to what you might get from any other effective weight loss diet, whereas fat loss is specifically better on VLCKD.

GoodQualifiesHIGH confidence
Third, although the VLCKD also resulted in a significant reduction of glycemia, HbA1c, and LDL cholesterol, these changes were similar to those obtained with other weight loss interventions.
Giovanna Muscogiuri et al. · Obesity Facts · 2021

Why this rating

Supported by meta-analysis of multiple RCTs showing consistent biochemical improvements.

Source

European Guidelines for Obesity Management in Adults with a Very Low-Calorie Ketogenic Diet: A Systematic Review and Meta-Analysis

Giovanna Muscogiuri et al. · Obesity Facts · 2021

DOI 10.1159/000515381

Meta-analysis · 15 studiesCited 274×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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