My understanding is that calcium absorption relies on vitamin D and that vitamin D needs fat to be used by the body.  If I drink low-fat milk with a low-fat meal, is the milk's supply of calcium wasted?
D000273:Adipose Tissue / Q000378:metabolism*; D002118:Calcium / Q000378:metabolism*; D004041:Dietary Fats / Q000378:metabolism*; D006801:Humans; D009752:Nutritional Status; D014807:Vitamin D / Q000378:metabolism*
D004041:Dietary Fats; D014807:Vitamin D; D002118:Calcium