Food

The practice of nutritional science faces some significant problems, and they are mainly of its own making. For decades, starting in the 1950s, a consensus of experts recommended that Americans cut down on fat, cholesterol, and saturated fat so as to minimize their risk of heart disease. In more recent decades, the consensus has, like an ocean liner, slowly changed directi

When cows burp, they emit the potent greenhouse gas methane into the atmosphere. But by adding seaweed to the cows' diets, researchers are noticing a dramatic reduction in methane production.