Iodine is crucial for thyroid function, which regulates your metabolism, energy, and mood. If you’re low on iodine, symptoms can include fatigue, weight gain, or even brain fog. While it’s usually found in iodized salt, some people may still need a boost.

Vegans, pregnant women, and people living in low-iodine regions are most at risk of deficiency. That’s where iodine supplements—often in the form of potassium iodide—come into play.

Too much iodine, though, can be just as harmful as too little. Overuse can lead to thyroid dysfunction or hormonal imbalance. That’s why the right dosage matters. For most adults, 150 mcg daily is the standard recommendation.

You can also get iodine from seaweed, dairy, and seafood. But if those aren’t in your regular diet, a supplement might help—just make sure to choose a reputable brand with proper labeling.

Want to stay balanced? Platforms like workout supplements can help you evaluate whether iodine supplements are right for your lifestyle and how to use them safely.