Obesity’s Impacts on Gallstones, Acid Reflux, and Heart Disease
Sufficient, sustained weight loss may cut the risk of fatal heart attacks and strokes in half.
In the ABCs of health consequences of obesity, G is for Gallstones.
The top digestive reason people are hospitalized is a gallbladder attack. Every year, more than a million Americans are diagnosed with gallstones, and about 700,000 must have their gallbladders surgically removed. It is a relatively safe procedure, with complication rates tending to be under 5 percent and a mortality rate of only about 1 in 1,000. However one in ten may develop a post-cholecystectomy syndrome of persistent gastrointestinal symptoms long after their gallbladder is removed.
What are gallstones made of? In 80 to 90 percent of cases, gallstones are mostly crystalized cholesterol, forming like rock candy in our gallbladder when cholesterol gets too concentrated. This was used to explain why some small, early studies found that non-vegetarians had a higher incidence of gallstones. However, results from more recent, larger studies are more equivocal; one study suggests that a “vegetarian diet may therefore protect” against gallbladder disease, for instance, while another shows higher rates among vegetarians, independent of weight.
As I discuss in my video The Effects of Obesity on Gallstones, Acid Reflux, and Cardiovascular Disease, the biggest purported cause-and-effect risk factor may be obesity, increasing risk as much as sevenfold, as you can see below and at 1:32 in my video, with a doubling of risk even at the heavier side of “the normal BMI range.”
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