dried kelp
Dried kelp is a natural iodine source, but its iodine content is high and varies between batches, and large intakes may disrupt thyroid function. Hyperthyroidism is common in middle-aged and senior cats, so cats diagnosed with thyroid disease should avoid extra seaweed supplements; small amounts of kelp in a formulated diet are usually fine for healthy pets.
Other common names: kelp, kelp meal, seaweed, dried seaweed, kelp powder, 乾燥海帶, 海帶, 昆布, 海藻, 海苔, ケルプ, コンブ, 海藻粉
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Sources: ASPCA Animal Poison Control Center, FDA Center for Veterinary Medicine, veterinary literature.
For reference only, not medical advice. If poisoning is suspected, seek veterinary care immediately.