We already knew there was an association between visceral fat (belly fat) and heart disease. Now it appears that this visceral fat can also be a contributor to osteoporosis as well.
According to a study presented to the Radiological Society of North America (RSNA) excessive belly fat can decrease bone density. Women who had more visceral fat had less bone mineral density and more bone marrow fat.
A bone mineral density test measures the amounts of calcium and other minerals in a section of bone. This test is one of several used to evaluate the risk of bone fractures and the possible presence or potential of osteoporosis.
Bone marrow fat refers to the amount of fat accumulated in the bone. Measuring bone marrow fat and bone mineral density is a predictor of weakening bones.
https://www.empowher.com/osteoporosis/content/osteoporosis-more-belly-fat-can-mean-thinner-bones