"Studies show there is an association between regularly skipping breakfast and higher body mass index," an obesity researcher says. "But it does not necessarily represent cause and effect." iStockphoto.com hide caption itoggle caption iStockphoto.com The Salt Skipping Breakfast Makes You Fat? Not So Fast September 6, 2013 There's a mountain of myths and assumptions about what makes us fat. One researcher is interested in understanding where these ideas come from and why scientists continue to recycle them. In a new study, he homes in on the presumption that skipping breakfast has a direct effect on obesity.