请着这几篇论文。本人不是这方面的专家，但相信NIH网站上的研究论文和美国主要媒体的报导

Conclusions

These data have significant implications for the use of this sweet potato variant in protection against colorectal cancer.

From https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5624454/#!po=40.7895

 

Sweet potato peel, which is usually discarded as waste, contains constituents that can serve as dietary components to prevent the development of different types of cancer.

From https://www.ncbi.nlm.nih.gov/pubmed/27673552

 

还有CNN报道

Kale, sweet potatoes and squash

Eating foods rich in carotenoids has been linked to a reduced risk of breast cancer recurrence. Carotenoids are the natural pigments found in yellow and orange foods (such as carrots, sweet potatoes and squash) and dark leafy greens such as kale, spinach and Swiss chard. 

In a 2009 study published in the journal Cancer Epidemiology, Biomarkers & Prevention, increased consumption of carotenoids was associated with "greater likelihood of breast cancer-free survival." The report based its findings in part on the Women's Healthy Eating and Living Study, a National Institutes of Health-funded investigation. 

To increase the consumption of carotenoids, Dr. Mitchell Gaynor advises his breast cancer patients to eat more cruciferous vegetables. Gaynor, founder of Gaynor Integrative Oncology, says his reasoning is simple: "We understand cancer quite differently today than we did when President Nixon declared a war on cancer in the 1970s. We know now that certain foods make your body inhospitable for cancer cells to thrive. The goal is to keep cancer cells dormant, and what you eat makes a difference."

https://www.cnn.com/2013/10/18/health/food-breast-cancer-survivors/index.html

 

一位洋人医生的看法

Sweet potatoes can be considered a superfood. They are one of the healthiest and cheapest vegetables on the planet. (And one day, perhaps, even off the planet, as NASA has chosen the sweet potato for space missions.) A study out of the University of Washington aimed to identify which vegetables provided the most nutrients per dollar. In my video, Anti-Cancer Potential of Sweet Potato Proteins, you can see a graph of affordability versus nutrition for different foods. The healthiest foods, like dark green leafy vegetables, may also be the cheapest, and the highest nutrient-rich food scores per dollar were obtained for sweet potatoes.

Sweet potatoes are not just packed with nutrition but may also have special cancer-fighting properties. In 1931, a unique protein was discovered in sweet potatoes. It turns out that 80% of the protein in sweet potatoes is a type of protease inhibitor with potential anticancer effects. These proteins were originally tested against leukemia and appeared to suppress the growth of leukemia cells in a petri dish.

https://nutritionfacts.org/2015/11/19/sweet-potato-proteins-vs-cancer/

 

 

 

 

所有跟帖： 

• Thank for informative evidence! -street0120003- ♂ (0 bytes) () 04/09/2018 postreply 05:27:49

• 谢谢举证。 -锅沿- ♂ (0 bytes) () 04/09/2018 postreply 05:28:03