Dosage of any supplement may vary from person to person depending upon a number of factors. However, 1500 mg in a day is considered enough for an average healthy adult. The recommended serving size is 500-1000 mg about an hour before every meal. Exceeding the recommended dosage can naturally affect your health and show some side effects, like any other health supplement. If consumed in right amount under the guidance of a physician, the chances of side effects are minimal. But side effects can be caused because of the quality of the product that you have bought. Therefore, it is always advised to purchase from a trusted brand."