Like "I took it about 15 years ago when I knew I was not metabolizing carbohydrates appropriately but had no idea I was becoming diabetic. It was a recommended part of the Carbohydrate Addict's diet plan. I used it for about 2 years and eventually built up a tolerance to it's beneficial effects and a bad stomach ache whenever I took it. I stopped. Afterwards, I found chromium can cause toxicity at high levels. "