People on a low-fat, plant-based diet ate fewer daily calories but had higher insulin and blood glucose levels, compared to when they ate a low-carbohydrate, animal-based diet, according to a small but highly controlled study. The study compared the effects of the two diets on calorie intake, hormone levels, body weight, and more.
https://www.sciencedaily.com/releases/2021/01/210121131851.htm