Some guy on the local news in my area tried it for the sake of comparing it to other diets, he got jaundice.
Personally, it ruined my GI and I GAINED lots of weight from it. Its so toxic. Clogs the lympth.
However, I saw Atkins tons of times on TV, he did not look FAT. Are you sure he was so fat? There are a lot of bad things you can say, but that's intresting if its true.