Can you really lose weight on raw food? Yes. It is possible to experience weight loss on a raw food diet. This is a result of the increased fibre, lower calories, sodium, and fats that occur particularly in plant based foods. One of the key factors to consider include the glycemic index (GI) of the foods you are consuming. Raw foods, fruits, vegetables, dairy products and snacks all have varying GI. This Glycemic Index Food List may help and result in you rethinking the foods you consume.