White fat is the 'bad' stuff which stores energy rather thanburning off calories.
What produces 300 times more heat than any other organ in the body? What stops a baby from freezing to death if left in the cold? The answer to both questions is "brown fat".
Scientists have discovered that this type of fat is a good thing because it produces lots of heat by burning calories. Unlike white fat, which clings to our hips and expands our aging waistlines, brown fat keeps the weight off. And that's why the race is on to find out more about brown adipose tissue, also known as brown fat,