Collagen powders, drinks, creams and injectables promise youthful skin and health benefits. Experts reveal what really works and where marketing exaggerates.

One serious side effect is having very low levels of vitamin B12, which can lead to tiredness, dizziness, muscle twitches or weakness, according to the NHS. Another is weakened bones, which causes a ...

Coming in as the most vitamin A–rich food, three ounces of pan-fried beef liver contain 6,582 micrograms (mcg) of the vitamin. That is 731% of the daily value recommended that you should be consuming, ...

It’s almost impossible to get enough vitamin D through the diet, so supplements are the safest way to consume more vitamin D ...

Like the sunshine itself, the “sunshine vitamin,” aka vitamin D, is crucial for our overall health. The vitamin, which is called the “sunshine vitamin,” because sunlight helps your skin make it, plays ...

Vitamin D, also known as the “sunshine vitamin,” is crucial for bone health, helps to support the immune system and assists in calcium absorption. Despite its significance, vitamin D deficiency occurs ...

Biotin does not cause any severe side effects, but it may interfere with certain medicines and laboratory test results.

According to an article on BBC News, the Quadram Institute in Norwich is recruiting 76 people with low vitamin D to take part in the ViTaL-D Study, where some participants will eat soup containing ...

The expert warned: " Taking too much vitamin D long term can lead to hypercalcemia, an excess of calcium in the body, which can cause problems with your heart, kidneys and bones. 4,000 IU or 100 mcg ...

Vitamin D, often hailed as the "sunshine vitamin," is celebrated for its crucial role in bone health, immune function, and mood regulation. Its widespread popularity has made supplementation common, ...