Companion Animals

Cat Hyperthyroidism Dietary Iodine Restriction

Iodine-restricted diets offer an alternative to drug or surgical treatment for feline hyperthyroidism, controlling thyroid hormone production through dietary management alone.

Key Facts

Welfare Considerations

Iodine-restricted dietary management of feline hyperthyroidism offers a non-invasive treatment option that avoids daily medication and procedure-based treatments. The welfare benefits include elimination of the handling stress of twice-daily pilling for cats that resist medication. The welfare cost is absolute dietary restriction that requires the cat to eat only the prescribed diet with no other food access. For cats in single-cat households who accept the dietary change readily, this approach provides good disease control. For cats who refuse the diet or live in multi-cat households where control is impractical, other treatment approaches are more appropriate.

What You Can Do