There are no side effects related to Herbalife products. Side effects are defined as undesirable effects directly caused by an ingredient, most typically a drug or medical treatment.  

This is different from pre-existing factors which may cause a consumer to be sensitive, intolerant or even allergic to certain foods or ingredients, which may be commonly used in the global food supply, including used in Herbalife's products.  

Additionally, you may be taking medications or other products that interact with specific ingredients or foods. For this reason, if you are unsure about the specific nutrition requirements for your body, contact your healthcare provider to advise further.

Content source: https://www.herbalife.co.uk/faq/what-are-the-side-effects-of-herbalife/