Researchers at Washington University in St. Louis report that restricting dietary protein slowed prostate and breast tumor growth by up to 75 percent in human xenograft models, and that plant-derived protein promoted growth less than animal protein.
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Nutrition
Vitamins, minerals, supplements, herbs and diet: the research on how what we eat shapes our health.
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Food
Bitter melon may help prevent colon cancer
A citation for a 2013 paper by Kwatra and colleagues reporting that methanolic extracts of bitter melon inhibited colon cancer stem cells by affecting energy homeostasis and autophagy.
Phytochemicals
Curcumin helps lung cancer
Mice fed a diet with 0.6% curcumin before receiving human lung cancer cells developed tumors 36% smaller than controls and were more likely to survive, Tel-Aviv University scientists found. Curcumin lowered inflammation markers and promoted apoptosis in cancer cells.
Diet
High fat diet may raise lung cancer risk - study
A high-fat diet promoted tumor growth in two mouse models of K-ras-driven lung cancer, according to work presented at an AACR meeting. The researchers speculate the diet acts by raising systemic IGF-1; K-ras mutations appear in about 25 percent of human lung cancer cases.
Food
Plant protein seems healthier than animal protein
Among 131,342 people in two U.S. cohorts, high animal protein intake was tied to 8 percent higher death risk only in those with a lifestyle risk factor such as smoking or obesity, while plant protein was tied to 10 percent lower risk. The study is observational and shows no cause.
Food
Trans fat increases stroke risk in men
A 2014 study in the American Journal of Clinical Nutrition found men eating just 2 grams of trans fat a day had a 14% higher stroke risk; the link did not turn up in women, though an earlier study did find one. Why trans fat raises the risk is unknown.
Food
Jujube may help prevent cervical cancer, breast cancer
A laboratory test reported in Avicenna Journal of Phytomedicine found a jujube water extract cut the viability of human cervical and breast cancer cells in a dose- and time-dependent way, raising the Bax/Bcl2 ratio. The work was done in cell cultures, not in people.
Supplements
Aged garlic extract helps colds and flu
In a randomized trial of 120 adults, 2.56 grams a day of aged garlic extract through the cold and flu season did not reduce how often people got sick, but those who did had less severe symptoms. Two types of immune cells also proliferated more readily by day 45.
Food
Whole grains cut risk of heart attack - study
Among 54,871 Danes followed for 13.6 years, those eating the most whole grains were 25% less likely to have a heart attack. Rye and oats, but not wheat, carried the association in men; no significant link appeared in women.
Food
Why Americans Waste So Much Food - News from Ohio State University
A survey of 500 Americans published in PLOS ONE found 53 percent aware that food waste is a problem, and many perceiving benefits to throwing food out that co-author Brian Roe says have limited basis in fact. US consumers discard about 80 billion pounds of food a year.
Food
High red meat intake linked to end stage renal disease
Among 63,257 Chinese adults in Singapore followed 15.5 years, the top quarter for red meat intake were 40% more likely to develop end stage renal disease, with risk rising by dose. Poultry, fish, eggs and dairy showed no effect; soy and legumes looked slightly protective.
Vitamins
Pharmacologic vitamin C effective against influenza A
At Chest World Congress 2016, Linling Cheng reported that pharmacologic doses of vitamin C reduced or eliminated the infectivity of Tamiflu-resistant influenza A viruses in cell studies and cut lung viral titers 10- to 100-fold in mice, preventing weight loss and death. Oral doses did not.
Food
Some dietary fats still getting a bad rap, says UBC researcher
UBC's Deanna Gibson reports in the Journal of Infectious Diseases that some saturated fats appear protective in inflammatory conditions such as colitis and Crohn's disease, while some polyunsaturated fats from nuts and seeds can irritate an already inflamed bowel.
Food
Vegetable extracts may help fight cancer
A Korean lab study reports that shiitake mushroom and carrot extracts inhibited stomach cancer cell growth, that radish leaves, burdock and carrot worked against promyelocytic leukemia cells, and that radish and radish leaf extracts suppressed lung cancer cells.
Food
Processed meat, dairy products linked to prostate cancer
Among 3,892 Maryland men aged 35 and over, those eating five or more servings of processed meat a week were 53% more likely to develop prostate cancer and 124% more likely to develop advanced disease. Five or more dairy servings tracked with 65% higher risk.
Vitamins
MUST READ: The Cure from Nature: The Extraordinary Anticancer Properties of Ascorbate (Vitamin C)
An editor introduces a review by Mastrangelo and colleagues on ascorbate's therapeutic effect against cancer, and lists many other conditions the editor says vitamin C has been reported to help, from diabetes complications to wound healing.
Vitamins
Vitamin C, Ginkgo biloba reduce adverse effects of fluoride
A Toxicology in Industrial Health study found rats drinking water with 100 ppm fluoride showed impaired spatial learning and memory, while rats also fed vitamin C and Ginkgo biloba at 100 mg/kg were less affected. Water at 0.5 ppm, the WHO limit, caused no such effects.
Vitamins
Breaking Cancer News: High Doses of Vitamin C May Cure Colorectal Cancer
A 2015 Science paper reports that high doses of vitamin C selectively killed cultured human colorectal cancer cells carrying KRAS or BRAF mutations, through oxidative stress that disabled the enzyme GAPDH, and suppressed tumour growth in mutant mice.
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