There are many diets that will make you lose weight.  Paleo is one of them.  The difference between Paleo and Nutritarian is the science behind them.  When we’re talking about diet, the measure of efficacy should not be based on weight loss results alone.    After decades of research, this is no longer much of a controversy.  In terms of heart health, cancer prevention, BMI, and over-all longevity, a nutrient-dense vegan diet is unquestionably superior.