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Prevention starts long before illness. Explore the cancer-fighting foods our dietitian recommends most, along with practical recipes designed to help you turn nutrition guidance into everyday habits.
Contributed by: Rita de Freitas, RDN
When it comes to cancer prevention, there isn’t a single “superfood” that guarantees protection. But research consistently shows that what you eat every day plays a powerful role in supporting long-term health and lowering cancer risk.
According to nutrition research and cancer prevention organizations, diets rich in plant foods — including vegetables, fruits, whole grains, legumes, and healthy fats — provide compounds that help protect cells from damage, reduce inflammation, and support immune function.
Your plate doesn’t need to be perfect. Small, consistent choices add up over time.
Here are some of the top cancer-supportive foods our dietitian encourages patients to regularly incorporate into their diet.
Rita de Freitas, RDN, explains that flaxseed is linked to reduced breast cancer risk in postmenopausal women. Flaxseed contains high levels of lignans, antioxidant rich phytoestrogen compounds which have weak estrogenic activity in the body. They may also be able to block more harmful forms of estrogen, reducing risk of hormone-sensitive breast cancers by reducing the growth of cancerous cells.
Ways to enjoy:
Rita explains that berries, like blueberries, get their color from phytonutrients called anthocyanins that have strong antioxidant properties. "Blueberries contain many phytochemicals and nutrients which show potential anti-cancer effects in laboratory studies. Several studies found that eating blueberries increases antioxidant activity in the blood as well as showing potential to prevent DNA damage." American Institute for Cancer Research
Ways to enjoy:
Curcumin is the main polyphenol in turmeric, a deep yellow colored spice used often in Indian cuisine. There is a lot of evidence to suggest that cancer risk increases when inflammation is present, explains Rita. Curcumin reduces inflammatory molecules and is also capable of inducing a process called apoptosis, or programmed cell death, which can reduce cancer cell growth without also killing healthy cells. When cooking with turmeric, Rita shares, be sure to add black pepper to help ensure the turmeric is properly absorbed.
Ways to enjoy:
Green tea is full of flavanols called catechins that inhibit the development of cancerous cells by suppressing inflammatory molecules. It also has been shown to support the immune system and regulate programmed cellular death. Interestingly enough, green tea has also been found to impact the microbiome! It increases the beneficial bacteria Bifidobacterium in the gut. Rita lets her patients know that green tea can make a great alternative to coffee for those who are sensitive to caffeine, as it contains less caffeine per cup.
Ways to enjoy:
Cruciferous veggies like kale, cauliflower, broccoli, cabbage, and Brussels sprouts contain large amounts of a phytochemicals like sulforaphane, kaempferol and indole-3-carbinol that have been shown to reduce the risk of hormone-sensitive cancers. Although the mechanism is not fully understood, it may be due to their ability to increase detoxification processes in the liver, induce programmed cell death and reduce inflammation.
Ways to enjoy:
If you were looking for a sign to eat more chocolate, here it is! Cocoa found in dark chocolate has potent antioxidant, anti-inflammatory properties and favorably impacts the microbiome as well.
Ways to enjoy:
Nutrition is one of the most powerful tools we have to support long-term health. While food alone cannot prevent cancer, a nutrient-dense, plant-forward eating pattern helps create an internal environment that supports cellular health, immune function, and overall wellness.
Your everyday choices matter, and they don’t have to be complicated to make a difference.
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