The best low-cal diet plan isn't a diet so much as it is a method. CICO stands for "calories in, calories out" and is based on the mathematically sensible principle that as long as you're burning more calories than you're eating, you'll lose weight. All you need to get started is a way to track your calories—there are plenty of apps on the market although a pen and paper works great too—and a food scale to keep you honest about your portion sizes. (Also read this guide on how to safely cut calories to lose weight.) People love the simplicity and straightforwardness of the plan. And while it may not be the fastest way to lose weight, you're guaranteed to have success long term. (Just know that some weight-loss experts actually don't recommend calorie counting.)
There’s a reason why protein takes center stage in many popular diet plans: it helps you feel full and stokes your metabolism enough to help you avoid the typical one or two pounds most adults gain each year. Your body burns slightly more calories after eating protein compared with fats or carbs, and protein from food also helps keep your muscles from deteriorating as you age. (Strength-building exercise is another important part of this process.) In order to get these benefits, you need to include protein at each meal, and getting adequate amounts of protein at breakfast — about 20 grams — is especially important. Making a beeline for the bagels or cereal means your body misses a key opportunity to rebuild muscle tissue, which naturally breaks down as you sleep. If this is your morning routine, your muscle mass will start to decline, and that means your metabolism will slow down. So skip the AM pastries and other carb-rich fare, and opt for an omelet or smoothie made with Greek yogurt or protein powder, instead.
Keeping a toothbrush handy can do more than polish up that smile (and counter the effects of all that belly-slimming garlic); brushing your teeth throughout the day can also help you ditch that belly fat fast. A study conducted a sample of over 14,000 participants found that brushing after every meal was linked to lower weight. That minty toothpaste flavor not only clashes with virtually every food, brushing may also trigger a Pavlovian response that tells your brain the kitchen’s closed.
Choose Liquid Calories Wisely. Sweetened drinks pile on the calories, but don't reduce hunger like solid foods do. Satisfy your thirst with water, sparkling water with citrus, skim or low-fat milk, or small portions of 100% fruit juice. Try a glass of nutritious and low-calorie vegetable juice to hold you over if you get hungry between meals. Be careful of alcohol calories, which add up quickly. If you tend to drink a glass or two of wine or a cocktail on most days, limiting alcohol to the weekends can be a huge calorie saver.