Abby says she doesn't think restrictive diets are sustainable. ‘They essentially feed only into the psychological diet cycle that involves restricting food, then bingeing, then feeling guilty about bingeing before repeating the cycle over and over again. Followers may lose weight, but it's not sustainable, long term.'
One of Nathalie's main concerns is that Dr Gundry bans all grains from his eating plan. ‘There's wellresearched evidence that the intake of wholegrains is not only associated with better weight management but also lower levels of non-communicable diseases such as heart disease and stroke.' The traditional diets of many populations have contained food high in lectins, and they have all enjoyed long, healthy lives. ‘Examples are the Sardinians, whose Mediterranean diet contains legumes, tomatoes, pasta, dairy and more; the Okinawans in Japan, who enjoy a traditional diet of rice, sweet potato and soy; as well as vegetarians, especially a group in Loma Linda, California, whose diet is high in legumes and grains.'