Hashimoto's thyroiditis
An autoimmune condition where the immune system attacks the thyroid gland — the most common cause of an underactive thyroid.
Not medical advice. This is a general overview, not medical advice. Thyroid hormone levels and medication need to be managed by a doctor through bloodwork — diet and lifestyle changes support treatment, they don't replace it.
What it is
In Hashimoto's, the immune system gradually attacks the thyroid, reducing its ability to produce thyroid hormone. Over time this causes hypothyroidism — the thyroid slows down and the whole body feels the effects.
Common symptoms
- Persistent fatigue that doesn't fully resolve with rest
- Weight gain or difficulty losing weight
- Cold intolerance
- Dry skin and hair changes
- Mood changes, including low mood or brain fog
Managing day to day
Medication (usually levothyroxine, dosed by your doctor based on bloodwork) is the core treatment. Alongside that, diet and lifestyle changes are widely reported to help with symptoms:
- An anti-inflammatory eating pattern — whole, nutrient-dense foods, lower in added sugar and heavily processed foods.
- Regular, moderate exercise to support energy levels over time.
- Stress management — yoga, meditation, or breathing practices, since stress can compound symptoms.
- Prioritizing sleep, since fatigue is often the most disruptive symptom.
- Nutrients like omega-3s, antioxidants, and magnesium are commonly discussed for thyroid support — worth raising with your doctor before adding supplements.
Sources