Can Re-Lyte cause headaches?

Re-Lyte contains potassium citrate, which in rare cases can cause headaches in people who are sensitive to it.

Potassium is a critical electrolyte that supports healthy digestion, heart rhythm, blood pressure, muscle contraction, and more. That's why each serving of Re-Lyte Electrolyte Mix contains 400 mg of potassium citrate.

Potassium citrate is a slightly salty crystalline powder that comes from citric acid. It's well-studied and well-tolerated by most people. In fact, it's found naturally in a lot of fruits and vegetables (unlike potassium chloride, which isn't found naturally in foods). But there are people who are sensitive to potassium citrate, and they may experience side effects, including headaches.

If you think you have a sensitivity to the potassium citrate in Re-Lyte, we have two suggestions. You could try taking your Re-Lyte with food. That can decrease the likelihood of side effects. You could also try reducing the amount of Re-Lyte you take daily and gradually work up to a full serving to see if the sensitivity fades as your body adjusts to the full dose.

If you want to learn more about the benefits of potassium in general and potassium citrate in particular, here are a couple of helpful articles to check out: