The Metabolic Classroom with Dr. Ben Bikman Is Your Thyroid Lost on a Low-Carb Diet?
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Apr 13, 2021 Exploring the intricacies of thyroid health, the discussion highlights how low-carb diets may impact T3 levels while preserving thyroid function. Evidence suggests that reduced T3 could indicate enhanced hormone effectiveness rather than thyroid damage. The conversation also touches on the relationship between diet and autoimmune conditions like Hashimoto's, emphasizing the vital role of iodine. Overall, it's a thought-provoking examination of how dietary choices intersect with thyroid health.
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T3 Is The Active Thyroid Throttle
- Thyroid produces T4 and T3, with T3 being the active hormone that sets cellular 'throttle'.
- T4 acts as a reservoir converted to T3 mainly by the liver when tissues need more activity.
TSH Controls Thyroid Via Negative Feedback
- TSH from the anterior pituitary regulates thyroid via negative feedback by sensing circulating thyroid hormone.
- High TSH signals low thyroid output and low TSH signals excess thyroid hormone to protect homeostasis.
No Clinical Thyroid Damage Seen In Trials
- Decades of clinical trials of low-carb and ketogenic diets show no reports of clinical hypothyroidism.
- No single published trial has identified clinically relevant thyroid damage from carbohydrate restriction.
