Researchers from Tufts University in the US found that taking high doses of calcium supplements doubled the risk of death from various types of cancer. Colleagues from Tsinghua University found that beta-carotene, another popular supplement, increased the likelihood of lung cancer. In this respect reports Daily mail.
Beta-carotene is a yellow-orange plant pigment found in carrots and other vegetables. It is believed that the substance has a positive effect on brain function, increases concentration and improves memory. After analyzing 18 scientific papers on the effects of beta-carotene on the human body, Chinese researchers from Tsinghua University found that this dietary supplement increases the risk of lung cancer in smokers by approximately 16%. This effect was observed even at low doses.
American colleagues from Tufts University also found a link between the use of dietary supplements and an increased likelihood of cancer. They noted that taking high doses of calcium supplements (more than 1000 mg per day) doubled the risk of death from any type of cancer.
Mike Lean, professor of nutrition at the University of Glasgow, explained that the human body is not designed to process excessive amounts of vitamins.
“Humans evolved by consuming very limited amounts of vitamins from food,” the nutritionist said.
According to Lin, the human body lacks the biological mechanisms to eliminate hypervitaminosis. Excess vitamins accumulated in organs and tissues have a toxic effect. The professor argues that a balanced diet can meet the body’s needs for various vitamins and minerals, so nutritional supplements should not be taken without a doctor’s prescription.
existed before listed Vegetables that help maintain immunity in autumn.