Experts warn that popular over-the-counter supplements can make cancer worse.
Taking vitamin C or vitamin E tablets can cause lung cancer to grow and spread.
Swedish scientists stressed that people with any type of cancer should not change their diets because of the new research.
They said taking more than needed in supplements could be harmful.
As part of a study published in clinical research journal The cancer-bearing mice were given additional vitamins they were already getting from their diet.
Experts have found that the more vitamins they give, the more new blood vessels are formed within the tumor, which can eventually cause the tumor to grow and spread.
Dr. Martin Bergo, author of the Karolinska Institutet in Sweden, said:
“If you do all that, you could hit the dose levels we’re talking about.”
Dr. Martin said vitamins are still very important for human health.
“If you remove all the antioxidants in your food, you will get sick for many reasons, including vitamin deficiencies, which will affect cancer,” he said. new scientist.
“We are focused on increasing [supplemented] It’s a dose above the level needed,” he added.
Vitamin C is mainly found in fruits and vegetables such as lemons, peppers, strawberries, blackcurrants, broccoli, and potatoes.
It protects cells, maintains healthy skin, blood vessels, bones and cartilage and promotes wound healing.
According to the NHS, adults between the ages of 19 and 64 need 40mg of vitamin C per day.
You should be able to get the vitamin C you need from your daily diet.
A lack of vitamin C can cause scurvy.
Vitamin E is found in a variety of foods, including vegetable oils, nuts and seeds, and cereals.
It helps maintain healthy skin and eyes and boosts the body’s immune system.
Women need 3mg per day and men need 4mg.
You should be able to get all the vitamin E you need from your diet.
Vitamin E that the body does not need is stored for future use. This means you don’t need to include vitamin E in your daily diet.
