What are the potential side effects of ALA?

Alpha lipoic acid (ALA) is generally well-tolerated, but it can cause some side effects. One common side effect is mild stomach upset. Additionally, there is a particular consideration for those who engage in high-intensity interval training; ALA may affect heart rate due to its action on calcium channels. Some individuals report difficulty increasing their heart rate while on the supplement, which can be more of an annoyance than a serious adverse effect 1.

It's important to monitor how your body reacts to ALA and consult with a healthcare provider, especially if you incorporate it alongside physical activities or have underlying heart conditions.