Myth-buster
In a triple-blind trial, 3 g/day cinnamon for 90 days produced a weight loss of 0.8 kg — but that difference didn't clear the statistical bar (p = 0.11).
This is among the first rigorous tests of cinnamon for weight change in type 2 diabetes, and it found no convincing effect — the result sits squarely in the null column, making any earlier hype premature.
Researchers gave 140 adults with type 2 diabetes either 3 grams of cinnamon or a placebo every day for three months. While the cinnamon group lost about one and a half pounds more on average than the placebo group, that gap was small enough that it could easily have happened by chance, so the study can't confirm cinnamon actually helped with weight loss. Other measures like BMI, waist, hip, and neck circumference also showed no meaningful changes.
Where this fits in the evidence
This is among the first studies we've indexed on Cinnamon for Reduced Body Weight — treat it as an early signal until more research accumulates.
The study
- Randomized Controlled Trial (RCT)
- n = 140
- 2025-07-11
- Revista brasileira de enfermagem
This is a plain-language summary of a research finding, not medical advice. Pillser surfaces research signals to help you decide what's worth investigating — always consult a qualified professional before changing what you take.