Because the diet isn’t as restrictive as a traditional vegan or vegetarian diet, it may be simpler to stick with — hence its No. 2 ranking in U.S. News & World Report’s Easiest Diets to Follow category. Because you’ll be eating meat some of the time, you may also be at a lower risk of the aforementioned nutrient deficiencies that vegetarians and vegans may face.
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.)
Starchy veggies (like potatoes) and processed whole grains (like whole-wheat bread) are foods I’d normally recommend eating in moderation, since they provide plenty of nutrients, fiber, and healthy carbs. However, high-carb foods aren’t your best friend when you’re looking to drop water weight. Essentially, when your body stores excess carbs, it stores them with water. So replacing carb-heavy foods with non-starchy veggies that still provide filling fiber without as much water retention is the way to go. For a week before your event, you can swap out the starchy carbs for more non-starchy vegetables to lose some water weight.
Right now, this is the trendiest of all diet theories. It prioritizes the consumption of foods high in protein and fat while limiting the number of carbs per day to less than 20%. This means abstaining from grains, starchy vegetables, and fruits, and filling up on protein and fat. The most famous of all low-carb plans is the Keto Diet, an approach based on the metabolic process of ketosis, which happens when you restrict your carb intake to less than 0.7 grams per day and your body starts using fat, and not carbs, as its main fuel. 
After thoroughly researching the most popular and expert-recommended diet plans, we determined that all the diet plans to be included in our "Best of" list should meet the criteria stated below. However, there is one very important factor that, though essential to a person’s decision on whether or not to begin a diet, we could not review first hand: that factor is taste. 

Flexitarian: A mix between the words “flexible” and “vegetarian”, the Flexitarian diet can be described as a vegetarian going on a short carnivore vacation. It is a mostly vegetarian diet that sometimes incorporates meat, fish, and poultry, and it is ideal for people who want to benefit from vegetarianism but cannot resist the temptation of animal products.  Also, a recent study suggests that, by going meatless from time to time, you may actually help in the fight against climate change. 


The Dietary Guidelines is a joint report created by the Department of Health and Human Services (HHS) and the Department of Agriculture (USDA). It’s designed with the purpose of setting a general basis for what constitutes a healthy diet. The most recent Guideline was published in 2015 and will be updated in 2020. They include five key recommendations:


To prep his patients for success, Dr. Seltzer tells them to plan around a large evening meal by eating a lighter breakfast and lunch—NBD since most people who eat a meal before bed tend to wake up feeling relatively full, he says. Research suggests balanced bedtime meals may also promote steady next-day blood sugar levels, which also helps with appetite regulation.
Interested in following a more historical approach to eating? The Primal Blueprint is similar to the Paleo diet, which has roots in how our long-ago ancestors supposedly ate. This plan ditches grain, sugars, and processed foods while focusing on clean eating with plenty of protein (both animal- and plant-based), lots of vegetables, fruits, and healthy fats. The Primal Blueprint acknowledges other health factors too, advocating for lots of low-intensity activity, some high-intensity exercise, strength training, and plenty of sleep.
A big part of weight loss is simply being aware of the decisions you’re making. For example, when out at happy hour with friends, you may lose track of how much you're eating or drinking. But if you take a split second to step back and become aware of that fact, you’re more able to course correct. “The awareness and then planning for what else I can be doing, that might give me the same benefit of eating comfort foods,” says Gagliardi.

The Dietary Guidelines is a joint report created by the Department of Health and Human Services (HHS) and the Department of Agriculture (USDA). It’s designed with the purpose of setting a general basis for what constitutes a healthy diet. The most recent Guideline was published in 2015 and will be updated in 2020. They include five key recommendations:
Ketosis is the metabolic basis for all “keto” or “ketogenic” diets. On a normal diet that includes carbohydrates (sugar and starchy foods), the body transforms these carbs into glucose, which is used as the body’s main source of energy. But, when we consume a minimum amount of carbs, the body will look elsewhere for that much-needed energy, and that “elsewhere” is fat. In short, when the body goes into ketosis, it is burning fat instead of carbs.
The researchers explain that people who cook their own meals may simply have other good-for-you habits, like exercising more. However, they also concluded that home cooks ate more fruits and vegetables (along with a wider variety of foods), have healthier methods of prepping their food, and splurge less on foods high in calories and sugar. Consider any of the healthy eating books below to get started.
Variety: Nobody wants to eat the same thing day in and day out. That's why a variety of food items is essential for a diet plan to be sustainable. Also, variety as a criterion for determining the best diet plans refers not only to food items but also to groups of people. For example: Is the diet plan available to diabetics? Men? Women? People with allergies or special conditions?
You already know that a perfect diet doesn't exist, but many of us still can't resist the urge to kick ourselves when we indulge, eat too much, or get thrown off course from restrictive diets. The problem: This only makes it more difficult, stressful, and downright impossible to lose weight. So rather than beating yourself up for eating foods you think you shouldn't, let it go. Treating yourself to about 200 calories worth of deliciousness each day — something that feels indulgent to you — can help you stay on track for the long haul, so allow yourself to eat, breathe, and indulge. Food should be joyful, not agonizing!
We're taking advantage of all the healthy items you can find at Trader Joe's to create these healthy meal-prep lunches. To add extra protein (while minimizing prep time), we're using Trader Joe's fully cooked quinoa and cooked shrimp, both of which you can find in the freezer section. With a few more simple items, including bottled salad dressing, you'll have all the ingredients you need to make these high protein lunch bowls in under 20 minutes.
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