My sister made a calculated mistake and took a diet sample because she assumed it was safe. I mean you wouldn't think that a free sample could be harmful because it is free and given out at your local health food stores but that is not the case. She had very bad side effects and lost 5 pounds in less than 24 hours. My Royal Family 4: Lose 5 pounds In One Day The Worst Way Possible! Warning Dietary Supplement (Beta-Alanine) Pre-Workout Supplement Has Side Effects (Hint:Runny Side Effects) Details my sisters side effects but from what she read (after she discovered she was having an adverse effect) Beta-Alanine can cause even worse problems than the ones she experienced.