25 Apr 2018 --- Diets seem to forever be evolving, with new diets being tipped every year to be the next “big thing.” As consumers are ever-more engaged with their health and losing weight remains a key concern, the continuous stream of weight-loss diets is set to continue. What does the future hold for current “trendy” low-carb diets, such as paleo and keto: are they fact or fad? NutritionInsight delves into the pool of paleo and keto.