Excessive vitamin D levels can disrupt calcium balance, leading to nausea and frequent vomiting. If you often feel queasy or ...

Your skin tone may affect how much vitamin D you have in your blood. But does taking vitamin D supplements change skin tone?

sometimes too much is not enough. Most people think that because vitamin D is so important, the more they take, the healthier they will be. The reality is just the opposite. While water-soluble ...

Iron supplements are particularly infamous for causing constipation, nausea, and stomach pain. Vitamin C in high doses can ...

Vitamin D is vital for bone, muscle, and immune health but excessive intake can lead to serious health issues like hypercalcemia, nausea, and kidney c ...

Side effects of excess vitamin D or calcium most immediately include hypercalcemia and hypercalciuria. Serum calcium levels are tightly regulated at 2.2-2.6 mmol/L (9-10.5 mg/dL) for total calcium ...

US Health Secretary Robert F. Kennedy Jr. wrote in an op-ed that vitamin A could help against measles. Doctors explain why it ...

Too much vitamin A, particularly from supplements or animal sources (retinol), can lead to toxicity known as hypervitaminosis A. Symptoms: Dizziness, nausea, headaches, dry skin, joint pain, and in ...

Picture: Darina Belonogova / Pexels While excessive sun exposure can be harmful, spending a short amount of time outdoors can help your body produce vitamin D naturally. Aim for 10 to 15 minutes ...

The fine line between beneficial and harmful While vitamin C deficiency causes scurvy, a condition virtually eliminated in developed countries, excessive supplementation creates its own set of ...