Taking too much vitamin D can cause serious side effects. Learn the signs, why you might feel weird after taking it, and when to talk to your healthcare provider.

Fact checked by Nick Blackmer Vitamin D is vital, but taking in too much from supplements can be harmful.Vitamin D toxicity can cause common symptoms like nausea, weakness, and loss of ...

Rachael Link is a registered dietitian and health writer based in San Francisco. She completed her undergraduate degree at the University of Central Missouri and holds a master’s degree from New York ...

Close up of Vitamin D3 Omega 3 fish oil capsules on green background Healthy levels of vitamin D play an important role in overall health and disease prevention. The authors recommend that clinicians ...