Packaged meals: Many diet plans rely on meal-replacement bars, shakes, or other snack type foods. Still others rely on frozen entrees as a major part of your diet. Ask yourself if you are okay with a bulk of your diet relying on prepackaged snacks, shakes, or frozen meals, or if you prefer the flexibility of cooking your own meals or eating out frequently.
 Fryar CD, Carroll MD, and Ogden CL. Prevalence of overweight, obesity, and extreme obesity among adults aged 20 and over: United States, 1960–1962 through 2013–2014. National Center for Health Statistics. Health E-Stats. https://www.cdc.gov/nchs/data/hestat/obesity_adult_13_14/obesity_adult_13_14.pdf. (PDF, 341 KB) Published July 2016. Accessed July 6, 2017.
Why does this popular plan work? For one thing, it pushes wildly healthy staples to the forefront (think: nuts, vegetables, fruit, olive oil). For another, it's simply delicious, thanks to it's focus on fresh, simply prepared dishes like grilled fish with lemon and whole wheat pita with hummus. Science agrees: One meta-review of 16 studies, found the eating M.O. helped those on it lose an average of 8.5 pounds.
Accessibility to foods: Some diet plans ship foods straight to your door, while others require you to shop for very particular ingredients. There are also a range of price points, with some diets costing substantially more than others. Consider whether the food allowed on a particular diet will fit into your budget and be relatively easy to find at grocery stores.
Nuts, the second food to watch, contain a fair amount of carbohydrate, and it’s very easy to unwittingly scarf down large quantities. Cashew nuts are among the worst carb-wise – you’ll find that they contain around 20% carbohydrate by weight. For someone following a strict keto diet with a 20 grams of carbs per day allowance, this means that consuming 100 grams (which happens in a flash!) will have filled their daily quota. Peanuts tend to be around 10-15% carbohydrate – not putting them in the clear either.
If just the thought of heading to the gym makes you nervous sweat, don't worry; you can find other ways to move that may result in big weight loss. If you regularly fidget while at your desk or lounging at home (getting up frequently, tapping your feet, wiggling your leg), you might be burning a substantial amount of calories just from these little movements—enough to be considered a way to lose weight or prevent weight gain, according to a recent study published in the American Journal of Clinical Nutrition. The only bad news; your genes may play a role in whether you're a "born fidgeter," so if it's not in your nature to keep your body moving, you'll have to remind yourself to do it with an alarm or fitness tracker.
Weight loss may help chase your blues away. Scientists are still trying to work out why, but better body image and improved sleep may be part of the reason. In one study, depressed people who were very overweight felt better after they lost an average of 8% of their body weight. Other research shows you’ll continue to feel better, even after 2 years -- as long as you keep the weight off.