The common side effects of excess vitamin intake include flushing , diarrhea , nausea and vomiting
Test small topical patches before broader application
Vitamin B12 injections are becoming a health fad for those who have a vitamin B12 deficiency
According to the National Academies of Sciences, Engineering, and Medicine (NAP), a safe highest level is called the tolerable upper intake level. Assessment of what amount is too much is based on animal and human studies, published evidence of adverse events, and professional agreement based on a committee of experts
Individuals seeking to boost energy levels, support weight loss, enhance immune function, improve skin health, or address specific nutrient deficiencies may benefit from vitamin injections