I have known people who have been on miracle liquid diets for 12 months and lost megapounds. However, when they got off the diet, they reverted back to their old eating habits and pounded the weight back on. The miracle pills are really scary. With basically no governmental control over these, who knows long term and even short term effects. The diets that promote eating all the fat that you want but basically eliminating carbohydrates have to be suspect.
Carbohydrates are high energy foods and are necessary for the active person.
Something seems inherently wrong here. The risks just aren't worth it. Although dietary science is continuing to evolve and we have seen conflicting advice written by dietary experts, we will try to sort out what we know and how it applies. Grains, vegetables and fruits are excellent sources of carbohydrates. Foods high in carbohydrates are excellent sources of dietary fiber, which have significant health benefits.