Do you remember the grapefruit diet? How about the cabbage soup diet? Fad diets are huge money makers in today’s society. Diet companies often hire on celebrity spokespeople who claim that they tried every other diet on the market with little success, until this one, and credit the diet with their weight loss milestones. While their testaments may or may not be true, diet companies love when celebrity spokespeople speak highly of their products, as consumers flock to stores and empty the shelves.

With so many fad diets now, do you know which ones can you can trust? We found 10 of the most popular fad diets that actually have a proven history of success. Because the success of any diet is dependent on the person and the efforts made, we know that listing the worst diet fads is not beneficial to anyone. Without further ado, lets find out what fad diets actually work.

Low Carb Diet

There are some variations of the low carb diet (one of which we will look at a little later), but the original idea is similar to that of the Paleo Diet. By lowering the amount of carbs you consume, many people have been able to lose weight. The idea is that you want to eat healthy foods without eating many carbs, regardless of whether those carb-filled foods are seen as good or bad for you. Too many carbs can lead to high insulin levels, which can be tough to balance.

To get the full effect of a low carb diet, you are supposed to take only 10 percent of your daily calories from carbohydrates. The other 90 percent of your calories should come from fat (60 percent) and protein (30 percent). Some people are apprehensive of a low carb diet since it means eating a lot of fat, but these are typically the unsaturated fats that your body actually needs. Just a tip, you better have an appreciation for eggs when doing a low carb diet.

Zone Diet

The Zone Diet takes the idea of controlling what you eat, and provides its followers with a different take on the low carb diet. Instead of eating just 10 percent carbohydrates, the Zone Diet asks that you take 40 percent of your calories from carbs and split the other 60 percent in half between fats and proteins. These percentages will differ slightly after you take an assessment from the Zone Diet.

If you stay in these zones, you should be able to lose up to two pounds each week, especially when you consider the low amount of calories that are suggested by the regimen. The diet, which was created by Barry Sears, suggests that women on the program should only be eating around 1,200 calories per day, with a 300 calorie increase for men. This diet takes a lot of restraint, not to mention that the calorie count might be too low for some.

Gluten Free Diet

The Gluten Free Diet craze did not start as a weight loss program, but as a means to combat a digestive disorder known as Celiac disease. When people with Celiac disease consume foods that contain gluten (a protein found in some grains), it irritates the lining of their small intestine and makes it difficult for their body’s to absorb nutrients. This causes them to steer clear of any foods that contain gluten (and, there are a lot of them.)

Many of the foods that contain gluten also contain a lot of carbohydrates. Bread and pasta are two of the biggest culprits of gluten, and are also high in carbs. People who are avoiding gluten often have a low-calorie intake of food (as long as they’re avoiding gluten free junk food, as well), which directly contributes to weight loss.