If there is any doubt about the quality or safety, stop using it and get a better product.
Why do people do this to themselves? The best way to know how much you can take is to ask the person to explain it. Ask, "What is the best thing I can eat to help with my symptoms?" If they can't explain the answer, don't buy it. If you want to be healthy, then it is better to eat less of the things you don't need. If you are worried about your diet, look at what the best source of protein is. How can I make my own supplements if I am not sure how much I need? Most of the supplements on this site are made using natural sources of ingredients. I am worried about my health, but I don't know how to take the proper amount of something. How can I find a good natural food that I can take when I am sick? If you really need a supplement, the best place to find it is at the local health food store, but be careful about buying from people you don't know. I have an idea that might help me, but I don't have the money to buy it.