Alcohol acts like a toxin to your thyroid and liver, damaging both and lowering hormone conversion from T4 to T3. What to know: • Alcohol harms thyroid cells and slows metabolism • It damages the liver, which is critical for thyroid hormone activation • Even small amounts can worsen fatigue, weight gain, and Hashimoto’s symptoms • Quitting alcohol supports detox, hormone balance, and thyroid recovery Avoid alcohol completely for a healthier thyroid, liver, and body. If you’re cutting back on alc