Research
Hormonal
Thyroid dysfunction and structural changes caused by overnutrition are largely reversible through weight loss and return to a normal diet.
If you have obesity-related thyroid issues, know that they are likely reversible. Losing weight through diet and lifestyle changes can restore normal thyroid function and hormone levels.
GoodSupportsHIGH confidence
thyroid dysfunction in mice can be reversed by weight loss.
Why this rating
Clear reversal data in mice.
Source
Overnutrition directly impairs thyroid hormone biosynthesis and utilization, causing hypothyroidism, despite remarkable thyroidal adaptations
Jessica Rampy et al. · bioRxiv (Cold Spring Harbor Laboratory) · 2025
DOI 10.1101/2025.03.31.645596
preprint
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Short-term overnutrition directly impairs thyroid hormone biosynthesis and peripheral T4-to-T3 conversion, causing hypothyroidism and reduced energy expenditure, despite compensatory thyroidal adaptations.Good
- Overnutrition reduces whole-body energy expenditure by impairing peripheral T4-to-T3 conversion via decreased D2 activity, rendering obese individuals resistant to T4 therapy.Good
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