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9 Popular Weight Loss Diets Reviewed.docx

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  9 Popular Weight Loss Diets Reviewed   There are many weight loss diets out there. Some focus on reducing your appetite, while others restrict calories, carbs, or fat. Since all of them claim to be superior, it can be hard to know which ones are worth trying. The truth is that no one diet is best for everyone  —   and what works for you may not work for someone else. This article reviews the 9 most popular weight loss diets and the science behind them. Share on Pinterest   1. The Paleo Diet The  paleo diet claims that you should eat the same foods that your hunter-gatherer ancestors ate before agriculture developed. The theory is that most modern diseases can be linked to the Western diet and the consumption of grains, dairy, and processed foods. While it's debatable whether this diet really provides the same foods your ancestors ate, it is linked to several impressive health benefits. How it works:  The paleo diet emphasizes whole foods, lean protein, vegetables, fruits, nuts, and seeds, while discouraging processed foods, sugar, dairy, and grains.  Some more flexible versions of the paleo diet also allow for dairy like cheese and  butter, as well as tubers like potatoes and sweet potatoes. Weight loss:  Several studies have shown that the paleo diet can lead to significant weight loss and reduced waist size (1Trusted Source, 2Trusted Source, 3Trusted Source, 4Trusted Source). In studies, paleo dieters automatically eat much fewer carbs, more protein, and 300  –  900 fewer calories per day (1Trusted Source, 2Trusted Source, 3Trusted Source, 4Trusted Source). Other benefits:  The diet seems effective at reducing risk factors for heart disease, such as cholesterol, blood sugar, blood triglycerides, and blood pressure (5Trusted Source, 6Trusted Source, 7Trusted Source). The downside:  The paleo diet eliminates whole grains, legumes, and dairy, which are healthy and nutritious. SUMMARY The paleo diet emphasizes whole foods but bans grains and dairy. Its multiple health benefits include weight loss. 2. The Vegan Diet Share on Pinterest   The vegan diet restricts all animal products for ethical, environmental, or health reasons. Veganism is also associated with resistance to animal exploitation and cruelty. How it works:  Veganism is the strictest form of vegetarianism.  In addition to eliminating meat, it eliminates dairy, eggs, and animal-derived products, such as gelatin, honey, albumin, whey, casein, and some forms of vitamin D3. Weight loss:  A vegan diet seems to be very effective at helping people lose weight  —   often without counting calories  —   because its very low fat and high fiber content may make you feel fuller for longer. Vegan diets are consistently linked to lower body weight and body mass index (BMI) compared to other diets (8Trusted Source, 9Trusted Source, 10Trusted Source, 11Trusted Source, 12Trusted Source). One 18-week study showed that people on a vegan diet lost 9.3 pounds (4.2 kg) more than those on a control diet. The vegan group was allowed to eat until fullness, but the control group had to restrict calories (13Trusted Source). However, calorie for calorie, vegan diets are not more effective for weight loss than other diets (14Trusted Source). Weight loss on vegan diets is primarily associated with reduced calorie intake. Other benefits:  Plant-based diets are linked to a reduced risk of heart disease, type 2 diabetes, and premature death (15Trusted Source, 16Trusted Source, 17Trusted Source, 18Trusted Source, 19Trusted Source). Limiting processed meat may also reduce your risk of Alzheimer's disease and dying from heart disease or cancer (20Trusted Source, 21Trusted Source, 22Trusted Source, 23Trusted Source, 24Trusted Source). The downside:  Because vegan diets eliminate animal foods completely, they may  be low in several nutrients, including vitamin B12, vitamin D, iodine, iron, calcium, zinc, and omega-3 fatty acids (25Trusted Source, 26Trusted Source, 27Trusted Source, 28Trusted Source, 29Trusted Source).  SUMMARY Vegan diets exclude all animal products. They may cause weight loss due to lower calorie intake while reducing your risk of several diseases. 3. Low-Carb Diets Low-carb diets have been popular for decades  —   especially for weight loss. There are several types of low-carb diets, but all involve limiting carb intake to 20  –  150 grams per day. The primary aim of the diet is to force your body to use more fats for fuel instead of using carbs as a main source of energy. How it works:  Low-carb diets emphasize unlimited amounts of protein and fat while severely limiting your carb intake. When carb intake is very low, fatty acids are moved into your blood and transported to your liver, where some of them are turned into ketones. Your body can then use fatty acids and ketones in the absence of carbs as its primary energy source. Weight loss:  Numerous studies indicate that low-carb diets are extremely helpful for weight loss, especially in overweight and obese individuals (30Trusted Source, 31Trusted Source, 32Trusted Source, 33Trusted Source, 34Trusted Source). They seem to be very effective at reducing dangerous belly fat, which can become lodged around your organs (35Trusted Source, 36Trusted Source). People on very low-carb diets commonly reach a state called ketosis. Many studies note that ketogenic diets lead to more than twice the weight loss than a low-fat,
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