Harvard scientists recently found that 60-year-olds who ate five weekly servings of walnuts had a 1.3-year increase in lifespan. Walnuts may protect against diabetes, cancer, and Alzheimer’s.

Scientists have identified a probiotic and yeast fermentate combination that reduced cold and flu frequency by 55% and reduced days with nasal congestion by 43%.

Cinnamon, chromium, amla, shilajit, and seaweed help reduce blood glucose levels.

A major clinical trial showed that supplementing with vitamin D3 and omega-3 reduced incidence of autoimmune disease by 25%-30%.

Eating fish lowers vascular brain disease; overweight people urged to screen for diabetes starting at age 35; vitamin D deficiency linked to worse outcomes after hip-fracture surgery, and more.

Clinical research shows that increasing intake of tryptophan, an essential amino acid, improves sleep and boosts mood.

Investor-author Sergey Young provides practical and innovative steps to help people live long enough to take advantage of breakthrough longevity technologies when they become available.

Macadamia nuts contain a monounsat­urated fatty acid that may boost fat metabo­lism and reduce body fat. Studies show moderate intake aids weight loss.