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Among the many pleasures of summer is the return of fresh, wild-caught salmon to local supermarkets. In general, wild salmon are in season from May through September, depending on species. Richly flavored and easy to prepare in a variety of ways (see recipe on the next page), its no wonder salmon is Americas third most-consumed seafood, behind only shrimp and tuna, at about two pounds per person annually.

If youre taking extra vitamin D or calcium to protect your bones, theres good news about these bone-building nutrients and your cholesterol levels. According to a new analysis of data from the Womens Health Initiative (WHI), supplements of vitamin D and calcium might modestly improve your cholesterol numbers. Previous studies of calcium and cholesterol had produced inconsistent results, while little was known about vitamin Ds effects.

If you listen to advocates of the raw food movement, everything is better for you when its not cooked. But theres a whole group of leafy-green vegetables traditionally served cooked-mustard, collard and turnip greens-that, except in the South, most Americans simply skip as they concentrate on fresh salad greens. Cooking helps tame the flavors of some greens, like mustard, that might deter some diners. Cooking can also make chard more palatable, when its leaves and stems are too mature for salads. And of course cooking opens up a whole different menu for spinach and kale.

A pair of discoveries, reported in the journal PLoS One, may lead to better broccoli in the produce aisle. University of Illinois researchers, seeking to boost levels of anti-cancer glucosinolate compounds found in broccoli and similar vegetables, sprayed the plants shortly before harvest with methyl jasmonate. That natural, non-toxic plant signal chemical tells genes in the broccoli to produce the desired anti-cancer agents. Unfortunately, testing showed it also accelerated the production of ethylene, which causes plants to decay. Spraying a second chemical recently discovered in plants, 1-methylcyclopropene, was found to block the ethylene and prolong shelf life. The one-two punch, scientists hope, will help protect against cancer while also protecting the broccoli in your fridge.

Youve seen the TV commercials. A daily multivitamin supports heart and breast health, boosts your immune system and protects your eyes. A smiling couple feel pretty darned smart after learning that a study showing multivitamins reduce cancer risk used the very brand shes been making him take.

If youve been popping vitamin D supplements for benefits beyond bone health-such as preventing heart disease, cancer or diabetes-its too soon to know if those pills are really doing you any good. Thats the lesson, experts say, from a sweeping new review of 290 observational studies and 172 randomized trials of vitamin D, chronic disease and mortality. Although vitamin D deficiency was associated with a variety of health problems in the observational studies, the trials in which participants were actually given extra vitamin D failed to prove a benefit.

Eating a daily handful of nuts-about one ounce or three tablespoons-could reduce your risk of dying from the most common causes of death. Results from the largest study of its kind, following nearly 119,000 men and women for up to 24 years, show that regular consumers of any type of nuts were less likely to die from heart disease, cancer and lung disease or from all causes than non-nut eaters. As frequency of nut consumption went up, mortality risk dropped.

Q. Are there actually health benefits from drinking yerba mat tea? What is yerba mat, anyway?A. Diane L. McKay, PhD, an assistant professor at...

After one of the most comprehensive risk assessments of aspartame ever undertaken, the European Food Safety Authority (EFSA) has concluded the artificial sweetener is safe at recommended levels of consumption.

Dating back millennia, fermented foods are among humanity's oldest attempts to preserve food. But today these foods are newly popular for their purported health benefits. Fermented foods, ranging from sauerkraut to yogurt, are increasingly being seen as a boon to the gut - and in turn to benefits not only for digestive health but possibly also for allergies and even weight loss.