Weight Watchers is still the best choice for both short-term weight loss and long-term healthy eating, while Jenny Craig rules in the prepackaged convenience category. But if neither of those works for you, we also review the top diet books, low carb diets, the Paleo diet and more. We even recommend less-expensive alternatives to the top commercial diets.
When it comes to weight lifting for weight loss, it is important to put a few key points out there. First, you will not get BIG from lifting weights. You get “big” from overconsumption of energy (calories), which can be converted into fat or muscle based on the types of foods you eat and the exercise you do. Second, you can lift more than you think—and you should (with the help of a spotter, if necessary). And finally, if weight training is done properly you will likely be sore the day or two after your workouts (especially if you are new to resistance exercise). This is called delayed onset muscle soreness, or DOMS, and it is a normal response to weight training. Be sure to stretch, drink plenty of water and incorporate sound nutrition to help your body recover quickly between workouts. 

The "all meat all the time" low-carb approach or strict veganism can be great options for people who thrive on clear diet rules (and those two are actually the most popular diets out there) but these extremes are not for everyone. If you prefer more of a moderate approach, the Flexitarian diet is the clear winner. The "flexible vegetarian" mindset allows you a healthy balance of plant-based foods, responsibly sourced meats, and quality fats. The best part? It's not super restrictive, so you have plenty of nutritious food options. (Start here: How to Adopt a Flexitarian Diet)
While the American College of Sports Medicine warns that women who eat less than 1,300 calories a day and men who eat less than 1,800 risk slowing down their metabolism over time. But a rev-up stage that only lasts two weeks is approved by doctors and isn’t as difficult as it seems. Our tester found the Mayo Clinic day pretty satisfying, and still had enough energy to hit the gym.
What's more trustworthy than a diet built by experts from the Mayo Clinic? Created by doctors, nutritionists, and all-star chefs, the plan has a few phases: In the first, you should lose 6 to 10 pounds in two weeks. After that, you can expect to lose 1 to 2 pounds a week until you reach your goal weight. You're also given plenty of resources and advice to help you keep the weight off.
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