Answer:
The Atkins and Zone diets cause weight loss because they cut out all carbs and adds more protein and fat. Carbs which are mostly sugar cause weight gain the fastest. These diets are dangerous because they are short term fixes and do not last.
Effects of Atkins: constipation, bad breath, extreme fatigue and dehydration, easier to gain more weight faster
Effects of Zone: weight gain, insulin problems, poor overall health
BOTH CAN MESS UP ONES METABOLISM