How to Eat to Rev Your Metabolism and Boost Weight Loss, According to Study
"Meaning: A low-fat plant-based diet is an effective tool for reducing body weight and increasing insulin sensitivity and postprandial metabolism.
The study found that adults with excess body weight and insulin resistance (which can lead to type 2 diabetes and other major health problems) benefited by going on a low-fat plant-based diet.
The study's objective: To measure the effects of a low-fat vegan diet on body weight, insulin resistance, postprandial metabolism, and lipid levels in overweight adults.
The study measured results among 244 people aged 25 to 75 with a body mass index of between 28 to 40. Then 122 people were asked to follow a low-fat vegan diet and the control group of 122 were asked to make no diet changes for 16 weeks.
After 16 weeks, body weight was measured using a calibrated scale. Body composition and visceral fat were measured by a density test while Insulin resistance was assessed with the homeostasis model. And the thermic effect of food was measured by indirect calorimetry over 3 hours after a standard liquid breakfast in 44 participants.
Over the 16 weeks, among those eating the low-fat vegan diet, they lost weight, (nearly 6 kg), while their metabolism shot up 14% and their insulin sensitivity improved. Meanwhile, their lipid levels went down by 34.4%, None of these variables changed significantly in the control group.
There reason eating plant-based helps promote weight loss is that "the sources of protein on a plant based diet do not contain cholesterol or animal fat, which can help reduce blood lipids, according to nutritionist and bestselling author, Rania Batayneh, MPH, who wrote The One One One Diet: The Simple 1:1:1 Formula for Fast and Sustained Weight Loss. "When consumed in the proper portions, plant based proteins can have less calories (and fat) than animal proteins. The consumption of less calories can result in weight loss. A plant based diet is also higher in fiber," she adds, "which helps to promote stabilized blood sugar levels which helps you mange hunger and cravings.
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Bottom Line: Going on a low-fat plant-based diet reduces body weight by reducing energy intake and increasing metabolism after eating. The changes are associated with reductions in blood lipid levels and healthy increased insulin sensitivity.