Question: Why do antioxidants prevent cancer?

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Can antioxidants protect cancer cells?

Can antioxidant supplements help prevent cancer? In laboratory and animal studies, the presence of increased levels of exogenous antioxidants has been shown to prevent the types of free radical damage that have been associated with cancer development.

What do antioxidants prevent?

Antioxidants are substances that may protect your cells against free radicals, which may play a role in heart disease, cancer and other diseases. Free radicals are molecules produced when your body breaks down food or when you’re exposed to tobacco smoke or radiation.

Why do antioxidants interfere with chemotherapy?

Some evidence suggests that antioxidants can interfere with the cancer-killing effects of chemotherapy. That’s because these chemical treatments cause oxidative stress, a chemically-triggered reaction in the body, which in turn kills cancer cells.

How do antioxidants protect our cells?

Antioxidants neutralize free radicals by giving up some of their own electrons. In making this sacrifice, they act as a natural “off” switch for the free radicals. This helps break a chain reaction that can affect other molecules in the cell and other cells in the body.

Can too much antioxidants cause cancer?

Excess antioxidants—like vitamin E and vitamin C—may fuel the spread of lung cancer, according to two new studies. Antioxidants come from two places: they’re in the foods like blueberries, dark leafy greens and chocolate, and the body also naturally produces them.

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Can antioxidants slow cancer?

Considerable laboratory evidence from chemical, cell culture, and animal studies indicates that antioxidants may slow or possibly prevent the development of cancer.

What are the top 5 antioxidants?

Here are the top 12 healthy foods that are high in antioxidants.

  1. Dark Chocolate. Share on Pinterest. …
  2. Pecans. Pecans are a type of nut native to Mexico and South America. …
  3. Blueberries. …
  4. Strawberries. …
  5. Artichokes. …
  6. Goji Berries. …
  7. Raspberries. …
  8. Kale.

Which fruit is high in antioxidants?

Many fruits are high in antioxidants, packed with vitamins, and beneficial in a myriad of ways. These include cranberries, red grapes, peaches, raspberries, strawberries, red currants, figs, cherries, pears, guava, oranges, apricots, mango, red grapes, cantaloupe, watermelon, papaya, and tomatoes.

Why antioxidants are bad for you?

Too much of a good thing

There are a number of reasons why high concentrations of antioxidants may be harmful. At high concentrations, antioxidants may: act as pro-oxidants, increasing oxidation. protect dangerous cells (such as cancer cells) as well as healthy cells.

Do antioxidants affect chemo?

Antioxidants and other nutrients do not interfere with chemotherapy or radiation therapy and can increase kill and increase survival, part 1.

Does chemotherapy produce free radicals?

Thus, chemotherapy becomes a substantial but indirect source of generating free radicals resulting into oxidative damage.

Is it OK to take vitamins during chemotherapy?

The use of dietary supplements is common including after a cancer diagnosis. However, taking dietary supplements before and during chemotherapy may reduce the ability of chemotherapy to kill cancer cells.