I'm telling you, if you want to get strong, lose weight, or be in good overall health, give up the idea of a miracle diet or shortcut plan. The body needs carbs, fat AND protein in decent amounts. Anyone who tells you to cut out all or most of one is flat out a QUACK. No reasonable doctor would ever tell you to do that, for a good reason. If you really feel you're overweight, all you need to do is this: go get on a goddamned treadmill or go running outside if the weather isn't bad. Limit your intake to a 2000 calorie diet according to the standard RDAs, cut out fast food altogether (since a single burger or plate of nachos can push you well over half your RDA for fat easily if they're from a greasy fast food chain), and start eating smaller, but more frequent meals combined with more fluids.
No one in the world should ever "go on a diet" in the traditional sense. Obviously you should plan out your meals a little, and watch your intake, but never do anything drastically abnormal to "drop a few pounds". People need lifestyle changes as a whole; anything you're willing to do for a few weeks should be something you're willing to do forever. If it isn't, then the pounds will come right back on.
The only supplementations you should consider are: 1) multivitamins, because it's hard to get proper quantities of EVERY SINGLE vitamin even in a good diet, 2) protein supplements, to replace a marginal amount of carbs/fat in your diet, or for those of you who don't eat that much meat and are trying to put on muscle, or 3) fiber supplements, for people with low fiber diets.
Fat burners are bad, wonder drugs are bad, herbal bullsh!t is bad (half that stuff is probably carcinogenic...), yada yada yada. I don't care about a little study done by some university that may show in certain cases that such and such can be beneficial. I stick to longstanding wisdom which says that cardio and weight training, combined with a fat-carb-protein BALANCED ~2500 calorie diet (more or less depending on body weight and physical exertion) is the path to a long, healthy, good looking life. It ain't easy getting ripped, but it's definately worth the pain. I'm about 6'0", and I went from 210 lbs with very little muscle (couldn't bench more than 100 lbs, couldn't do a pullup, and couldn't run a mile) to 175 with really good muscle definition (not to brag, but by comparison: I can now do several sets of 8-10 pullups, bench my weight a few times over, or run 5 miles without a problem) in a little over 1 measly year.
Atkins diet....pfft!