Lab Study: Purple Sweet Potatoes as Colon Cancer Fighters

Purple sweet potatoes (yes, purple) are packed with flavor, fiber, and flavonoids—and are especially high in anthocyanins, the deeply pigmented flavonoid phytochemicals found in many blue, red, or purple fruits, vegetables, and grains such as berries, red grapes, red cabbages, and black rice.purpPot_canstockphoto11111336

Now, a new lab study suggests that these brilliant-colored tubers are actually cancer-fighting powerhouses that may play a role in protection from colorectal cancer.

The study, published in Molecular Nutrition and Food Research, examined the role of a specially bred anthocyanin-rich purple sweet potato (with the secret agent-like name “P40”) in colorectal cancer prevention.

The authors of the study conducted two experiments. First, they compared the cancer-fighting effects of three different sweet potato varieties—a cream-fleshed potato called “O’Henry,” a purple-skinned, white-fleshed potato called “NC Japanese,” and the brilliant purple-skinned and purple-fleshed P40—when added to the diets of mice. They injected the mice with a known carcinogen and placed the mice into groups to receive a diet enriched with O’ Henry, NC Japanese, P40, or regular mouse chow, which served as a control. Continue reading


For National Men’s Health Week, Get the Facts on Cancer Prevention

Active senior man, in blue t-shirt and shorts, walking golden retriever along woodland path, smiling, front view, portraitThe week leading up to Father’s Day is National Men’s Health Week, which is dedicated to raising awareness of preventable health problems and encouraging early detection and treatment among men and boys.

Here at AICR, we’re proud to do our part by highlighting the message that many of the most common cancers in males have significant links to lifestyle factors. (For some cancers common in men, however, no strong links to diet, weight or physical activity have been identified; for these cancers, screening and early detection are key.)

Let’s start by taking a look at the most common cancer in men (besides skin cancer). Continue reading


Lab Study: Soy Plus Tomato May Help Prevent Prostate Cancer

Adding plump red tomatoes to your salad is a great way to add some cancer-fighting food into your diet because tomatoes are loaded with lycopene, along with other phytochemicals. AICR’s expert report and its updates found that canstockphoto13200480tomatoes and other food containing lycopene lower the risk of prostate cancer, specifically. Now, a new lab study suggests that eating tomatoes with soy foods may be even more protective against prostate cancer than each food consumed separately.

They study was published online in Cancer Prevention Research.

For the study, researchers wanted to look at the effects of tomato and soy — separately and in combination — on prostate cancer development. Along with tomato and its phytochemicals, lab studies have suggested that soy and its compounds also reduce prostate cancer risk.

The study used a type of mice genetically engineered to develop an aggressive form of prostate cancer. Researchers placed the mice into four diet groups: 1) whole tomato powder; 2) soy germ; 3) tomato powder and soy germ; and 4) control group that did not eat soy or tomato. Soy germ, just like wheat germ, is the reproductive part of the soy that germinates to grow into a plant. Continue reading