You don't smoke, you know
your family history of every cancer under the sun (including skin cancer) and
you never fall behind on an annual checkup.
1. Whole Grains
2. Tomatoes
3. Broccoli
4. Curcumin
5. Black Raspberries
6. Vitamin D-Fortified Milk
7. Wine
8. Garlic
10. Soy Milk
11. Green Tea
12. Mushrooms
13. Coffee
14. Olive Oil
15. Brazil Nuts
But there's still something
– well, a lot, actually – you can do to slim your cancer risk. Namely, watch
what you eat. Your food choices can either increase or decrease your risk of
cancer in a big way, with poor nutrition contributing about 30 percent of all
diagnosed cancer cases, according to Anna Taylor, a registered dietitian at the
Cleveland Clinic.
And while being overweight
or obese is linked with an increased risk for 10 different types of cancers,
including breast, pancreatic, endometrial and colon cancers, a multitude of
healthy weight-supporting foods also contain certain phytonutrients, vitamins
and minerals that have anti-carcinogenic effects. "These nutrients help
protect the body from carcinogens in the environment and reduce DNA
damage," Taylor says. "Many unprocessed foods, especially plant
foods, contain a variety of these compounds that work together synergistically
to decrease cancer risk." (FYI, that's why whole foods, not isolated
supplements, are best for reducing cancer risk.)
Ready to reduce your cancer
risk – and maybe even drop a few pounds while you're at it? Start filling up on
these 15 cancer-fighting foods:
1. Whole Grains
A 2016 study from the
Harvard T.H. Chan School of Public Health shows that eating a high-fiber diet
decreases women's risk of breast cancer. Foods that are high in fiber, and
especially whole grains like whole-wheat bread, quinoa and oats, promote
satiety and healthy weight, and may even keep breast cancer cells from binding
to estrogen and spurring the growth of breast cancer, Taylor says.
2. Tomatoes
Lycopene, a major
antioxidant in tomatoes that gives them their red color, can help stop breast
cancer before it starts, per 2015 research in the Journal of Cancer Prevention.
Meanwhile, beta-carotene and
vitamin C in tomatoes have been linked to a lower risk of esophageal cancer,
Taylor says. To get the most out of your tomatoes, turn up the heat. Cooking
tomatoes actually improves the body's ability to absorb lycopene, thereby
cutting cancer risk, according to one British Journal of Nutrition study.
3. Broccoli
Along with cabbage, Brussels
sprouts and cauliflower, broccoli is rich in phenethyl isothiocyanate, or
PEITC, which 2016 research in Molecular Nutrition & Food Research suggests
reduces men's risk of prostate cancer. Researchers believe PEITC may fight
cancer by flipping on and off a person's genes – obviously for the better.
What's more, "cruciferous veggies contain glucosinolates and indoles,
which are phytonutrients that appear to reduce the risk of several types of
cancer by decreasing inflammation, inhibiting enzymes that are pro-carcinogenic
and by stimulating enzymes that are anti-carcinogenic," Taylor says. For
an extra cancer-fighting punch, eat your broccoli alongside tomatoes. A
previous Johns Hopkins School of Medicine study found that broccoli and
tomatoes, when eaten in combination, are better at fighting existing cancer
tumors than when eaten separately.
4. Curcumin
"We have hundreds of
studies that suggest curcumin can help prevent cancer, including pancreatic,
colon, prostate, liver, esophageal and multiple myeloma, by promoting apoptosis
or 'cell suicide' of cancer cells, and by slowing the growth of tumors,"
Taylor says. In fact, 2013 research in Current Pharmaceutical Design even
explored the possibility of using the spice to develop new medical treatments
to combat cancer in the future.
5. Black Raspberries
They might look the same as
blackberries, but besides being less tart than their doppelgängers, 2015
research from The Ohio State University shows that antioxidants from black
raspberries can penetrate existing oral cancer tumors to slow their growth.
Plus, black raspberries (and most any berries, for that matter) are rich in
vitamin C, fiber and ellagic acid, all of which help protect the body against
cancer.
6. Vitamin D-Fortified Milk
Vitamin D deficiency is linked with increased risk of
several types of cancers, while 2016 research from the Stanford University
School of Medicine shows that vitamin D mitigates obesity's role in the
development of breast cancer by reducing the body's production of mammary
estrogens. Unfortunately, up to 41.6 percent of Americans are deficient in the
cancer-fighting vitamin, according to evidence published in Nutrition Research.
To get more D, Taylor suggests reaching for vitamin D-fortified dairy products
like milk. Bonus: Consuming low-fat dairy is linked with healthier body masses,
which is critical to cancer prevention.
7. Wine
Your happy-hour habit may actually do your body good. In one
2015 study from the University of North Carolina–Chapel Hill, people who
regularly consumed anthocyanidins, flavonoids commonly found in wine, had a 57
percent reduced risk of esophageal cancer than those who didn't drink up.
Flavonoids, antioxidant compounds contained in grape skins, may also influence
gene expression to reduce the risk of cancer, according to 2015 research in
Clinical Epigenetics. The key, however, is moderation. Taylor recommends that
men and women drink no more than one or two alcoholic beverages per day,
respectively, if they want to keep their cancer risk low.
8. Garlic
Your significant other will love this one: Eating garlic
reduces the risk of gastric cancer, according to a 2015 University of Sydney
meta-analysis of more than 20,000 people. "There are several substances in
allium vegetables, such as garlic, that are being studied to explore possible
anti-cancer benefits," says Taylor, noting that, in the lab, one of
garlic's compounds, diallyl disulfide, has actually killed leukemia cells.
9. Salmon
Men who eat fatty fish like salmon at least once a week are
57 percent less likely to develop prostate cancer compared to men who never get
fishy, according to research published in the International Journal of Cancer.
Meanwhile, women who get their fill of omega-3 fatty acids from fatty fish
enjoy a lower risk of breast cancer, per a 2015 review from the University of
Kansas Medical Center. EPA and DHA, two types of omega-3 fatty acids found in
fatty fish, may reduce the ability of other harmful fatty acids to spur
inflammation in the body, according to researchers.
10. Soy Milk
Soy foods contain myriad phytonutrients and other substances
that protect the body from cancer, Taylor says. The big one seems to be
isoflavones, estrogen-mimicking compounds researchers believe that, by blocking
the body's naturally stronger form of estrogen from attaching to breast cancer
cells, reduces the growth of estrogen-dependent tumors. For example, in one
study of 97,275 women, those who consumed even a few ounces of soy milk each
day reduced their risk of ovarian cancer. Meanwhile, results the Shanghai Women's
Health Study show that women who eat the most soy during adolescence and early
adulthood cut their risk of developing premenopausal breast cancer by about 60
percent.
11. Green Tea
Seriously, what can't green tea do? Research published in
The Journal of Nutritional Biochemistry shows that drinking green tea prevents
skin cancer, the most common form of cancer. Green tea is rich in
epigallocatechin gallate, or EGCG, a polyphenol that has intense antioxidant
powers, helping to protect your DNA from free radical damage, according to the
National Cancer Institute. In laboratory and animal studies, polyphenols
including EGCG have been shown to slow cancer growth and even cause the death
of cancerous cells.
12. Mushrooms
Eating about 2 cups of fresh mushrooms every day can
decrease your risk of breast cancer by about two-thirds, per one International
Journal of Cancer study. How does that work? Mushrooms contain compounds that
prevent estrogen levels from getting too high, explains Shiuan Chen, associate
chair and professor of the City of Hope Department of Cancer Biology in
California. And, since estrogen is involved in the development of 70 percent of
breast cancers, keeping your hormone levels in check is a big win.
13. Coffee
Java addicts, rejoice! In one University of Minnesota study
of 63,257 men and women, daily coffee consumption significantly reduced the
risk of gastric cancer, especially in women. "Coffee contains several
phytonutrients and compounds that serve as antioxidants, anti-inflammatories
and may serve other functions to protect against cancer," Taylor says,
noting that coffee and has been linked to a lower risk of endometrial,
colorectal and liver cancers as well as melanoma. In fact, research from the
University of Scranton has ID'ed coffee as the No. 1 source of antioxidants in
the average American's diet.
14. Olive Oil
"Olive oil contains several compounds, such as
squalene, polyphenols and tocopherols that provide anti-inflammatory,
antioxidant benefits," Taylor says. That may be one reason the
Mediterranean diet, which is rich in olive oil, was found in one 2015 JAMA
Internal Medicine study to decrease women's risk of breast cancer. It's worth
mentioning, though, that plenty of other foods on this list, including fruits,
veggies, fatty fish and wine, are also part of the Mediterranean diet. Opt for
extra-virgin olive oil whenever possible; it's the least processed form of
olive oil and retains the most cancer-fighting nutrients, Taylor says.
15. Brazil Nuts
These seeds, which love to masquerade as nuts, contain more
selenium than any other food lining your supermarket shelves. Selenium, a
dietary mineral with powerful antioxidant capacities, is linked with a reduced
risk of stomach, bladder and prostate cancer, and a 60 percent lower risk of
cancer mortality, according to a 2014 Cochrane review. What's more, a handful
of the seeds meets about 10 percent of your daily fiber needs to further reduce
your cancer risk.
