When you lose weight, your fat cells don't just let go of fat
from Popular Science
If cells were personified, each fat cell would be an overbearing grandparent who hoards. They’re constantly trying to make you eat another serving of potatoes, and have cabinets stacked with vitamins they never take. Like that grandparent, your fat cells are always trying to store stuff. Fats? Of course. Vitamins? Heck yeah. Hormones? You bet.
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