The Claim
A 15-day very low-calorie diet in obese women is associated with a reduction in serum triiodothyronine (T3) levels, and this reduction is proposed as a contributor to the decline in resting metabolic rate.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In obese women, a 15-day very low-calorie diet leads to lower levels of serum triiodothyronine (T3) and a lower resting metabolic rate.
See the scientific wording
A 15-day very low-calorie diet in obese women is associated with a reduction in serum triiodothyronine (T3) levels, which the authors propose as a potential contributor to the observed decline in resting metabolic rate.
When calorie intake drops sharply, the body reduces the conversion of one thyroid hormone into its more active form, which slows down energy use in cells, causing the body to burn fewer calories at rest.
What the research says
1 studyStudy: Resting Metabolic Rate, Body Composition and Thyroid Hormones
When obese women ate very few calories for two weeks, their body made less of a thyroid hormone called T3, and their bodies burned fewer calories at rest. The study suggests the drop in T3 helped cause the slower metabolism.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.