NAC is found in various foods. Including high-protein foods such as meat, fish, tofu, protein powder or some plant-based meat alternatives. It can also be found in lower amounts of eggs, whole grains, leafy green vegetables, and legumes. However, the dose that may be helpful for PCOS symptoms is likely too high to obtain from food sources. Therefore a supplement might be appropriate. We have provided some supplements available in the UK at the end of the article.