There are so many nutritional myths out there they could all have their own article but instead I thought I would take a small handful of the ones I come across a lot.
Does high insulin level prevent weight loss?
NO!! The myth is that if you eat a high carbohydrate diet (even if you are in a calorie deficit), it releases the hormone insulin which then makes your body store fat. Its absolute tosh and has never been proven, ever! I understand why people believe it! There are some very high-profile doctors out there promoting this theory, they say low carb is the only way. They have only one agenda, to sell their book!
There are many studies that dis prove this theory but I will name one that categorically disproves the insulin theory. In this study by Kevin Hall (Hall et al. (2015) Cell Metab) there were no significant differences in body fat losses when comparing isocaloric low carbohydrate and high carbohydrate diets in a tightly controlled metabolic ward.