peppers, broccoli, spinach, dairy foods, fish and meat, especially liver, according to the U.S. National Institutes of Health (NIH).
Vitamin A is a fat soluble vitamin. That means it can collect in the fat cells. But when taken in large amounts — like those in supplements — you can potentially reach an unsafe level, according to the NIH. Adults shouldn’t consume more than 10,000 international units of preformed vitamin A daily, the NIH said.
Cho said too much preformed vitamin A (typically from supplements and some animal foods) increases the risk of osteoporosis and hip fractures.
Squamous cell carcinoma is a common type of skin cancer. Over a lifetime, as many as 11% of Americans will have squamous cell skin cancer, the researchers said. It tends to occur in areas exposed to a lot of sunlight, such as the face and head.
The study included data from more than 75,000 women who took part in the Nurses’ Health Study and almost
