MSM Methy Sulfonyl Methane. This is a pure and beneficial form of organic sulphur, a naturally occurring nutrient found in every living organism. It is not related to common sulphurs, sulphates or sulphites which are irritants, and is not yellow as people always think of sulphur.
Raspberry ketones in food and cosmetics are generally considered safe but no one knows what short or long-term effect raspberry ketone supplements could have on your overall health. That's because there has been no study to document potential side effects.
Being in ketosis by following a low carbohydrate diet is NOT dangerous. The human body was designed to use ketones very efficiently as fuel in the absence of glucose. However, the word ketosis is often confused with a similar word, ketoacidosis.