“Rejuvenate.” “Restore.” “Brighten.” Skincare companies use vague buzzwords to imply that their elixirs, potions, and serums are the fountain of youth. Here's the evidence for which products do—and don't—work.
Getting enough protein matters, but most Americans eat more than enough. That doesn’t stop food companies from using protein to sell cookies, bars, shakes, and other junk foods.
Over the last few years, some experts have recommended higher-than-RDA protein intakes to keep older people from losing muscle as they age. In part, that’s because studies have reported that a high-protein meal boosts muscle protein synthesis for a few hours.
But many long-term studies have come up empty.
Carrots were yellow or purple until Dutch breeders reportedly produced the orange household staple in the 1600s. This Rainbow Carrot Salad showcases them all.
A 2018 study showed that eating too much saturated fat can create more liver fat than eating too much unsaturated fat. And that’s important because a fatty liver may trigger insulin resistance, which can lead to type 2 diabetes.
It’s daunting to think about the damage we’re doing to our planet, and the harm it will do to our own health.
But as our interview with Harvard’s Sam Myers (see "There is No Planet B") shows, solutions do exist. Some, like reducing carbon emissions from vehicles and power plants, are well known; others are less recognized. For example, livestock accounted for an estimated 15 percent of human-induced worldwide greenhouse gas emissions in 2005.
"Interest in the ketogenic diet grows for weight loss and type 2 diabetes,” reported a news article (not a study) in the Journal of the American Medical Association in January. A ketogenic diet—which is very low in carbohydrates and high in fat—may be getting attention, but the evidence to support it is far from solid.
