Fat is decomposed into lactic acid, lactic acid and calcium combine to form calcium lactate, and then calcium lactate burns to give off heat, and all the remaining substances are discharged from the body.
Fat consumes calcium in the process of metabolism. Adding extra calcium during weight loss is to prevent calcium from being separated from bones due to insufficient calcium in food.
Calcium tablets can be eaten, and skim milk and yogurt may be better than pure milk.