The diet does not teach important skills, like healthy meal planning and preparing, needed for sustained weight loss. The typical recommendation for calorie intake is approximately 1, calories per day for weight loss, but this number varies based on age, sex, weight, and activity level.
The SlimFast Diet allows for 1, calories a day for women and 1, calories a day for men, which may not be enough calories for some people. Use this calculator to determine the right number of calories for you.
As a meal-replacement diet, SlimFast does not meet the USDA's definition of a healthy meal plan since it replaces real, whole foods with shakes containing artificial ingredients and added sugars. SlimFast snacks—though low in calories—are highly processed foods.
The SlimFast diet restricts daily calories and will likely lead to short-term weight loss. However, research shows that meal replacement diets like SlimFast do little to promote long-term weight management.
Fortunately, the program does encourage exercise, which is essential to both weight loss and weight maintenance. Still, it might be hard to stick to the diet long enough to meet your weight loss goals.
Replacing meals with shakes can be an unsatisfying experience compared to eating whole foods. Though there are no common health risks or side effects associated with the SlimFast diet, the products are made from processed foods. Studies continue to show a link between processed foods and chronic diseases, which is why it's not recommended to consume these products for the long term.
Additionally, some SlimFast shakes are high in sugar, including added sugar. If you ate a lot of sweets before the diet, you may be tempted to return to these foods.
Research shows that consuming foods high in sugar and saturated fat can increase your risk of heart disease. Restricting daily calories to create a calorie deficit can certainly lead to weight loss in the short term, but restrictive diets, in general, are not sustainable eating plans.
A healthy diet that includes a variety of nutrient-dense whole foods combined with regular exercise can be one of the most effective weight loss strategies. If you're not sure what program or diet is best for you, ask your doctor or consult with a nutritionist or registered dietician for advice. While we do not endorse fad diet trends or unsustainable weight loss methods, we present the facts so you can make an informed decision that works best for your nutritional needs, genetic blueprint, and budget, and goals.
Exercise, sleep, and other lifestyle factors also play a major role in your overall health. The best diet is always the one that is balanced and fits your lifestyle. Get one simple hack every day to make your life healthier.
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Shop SlimFast. Ultra-processed diets cause excess calorie intake and weight gain: An inpatient randomized controlled trial of ad libitum food intake. Cell Metab. Department of Health and Human Services and U. Department of Agriculture. Ninth Edition. December Meal planning is associated with food variety, diet quality and body weight status in a large sample of French adults. Meal replacements, reduced energy density eating, and weight loss maintenance in primary care patients: a randomized controlled trial.
Obesity Silver Spring. The effects of ultra-processed food consumption-is there any action needed? The evidence for saturated fat and for sugar related to coronary heart disease.
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What Can You Eat? Pros and Cons. What Experts Say "Diets that promote eating bars and shakes instead of real foods aren't sustainable and often aren't healthy. Pros Accessible Less expensive than other commercial plans Easy to follow Portion-controlled. Here are 6 simple ways to lose belly fat that are supported by science. Some foods can reduce appetite, cravings and help you burn more calories. These are the 19 most weight loss friendly foods on the planet. Here are 11 ways to lose weight without doing a conventional diet or exercise plan.
All of these have been confirmed in scientific studies. To lose weight long-term, you don't need crash diets or boot camp. Instead, start by simply replacing processed foods with real foods. Though fad diets typically promise quick and easy weight loss, they seldom live up to the hype. However, these 8 fad diets actually work. Many people store fat in the belly, and losing fat from this area can be hard.
Here are 19 effective tips to lose belly fat, based on studies. Jenny Craig is a popular weight loss program based on prepackaged meals and support from a consultant. This article investigates whether the diet…. Health Conditions Discover Plan Connect. It consists of meal replacement shakes and food products designed to promote weight loss.
Its simple, convenient and easy-to-follow plan has garnered widespread success. This article takes a closer look at the pros and cons of the SlimFast Diet. It provides an easy short-term solution but may not be the best long-term investment. Share on Pinterest. How It Works. Other Benefits. Foods to Eat. Foods to Avoid. Sample Menu. Shopping List. Following the SlimFast diet plan as recommended can help you lose weight safely. However, ingesting only SlimFast shakes and failing to meet your calorie and nutrient needs is not a safe or sustainable way to lose weight.
You may lose weight at a faster rate at first, but in the long run you are not likely to keep the weight off. People who lose weight very quickly often end up regaining all the weight they lost — and potentially more. According to the Centers for Disease Control and Prevention , a safe and sustainable rate of weight loss is 1 to 2 pounds per week. Doing this requires creating a calorie deficit of approximately to 1, calories per day, advises Mayo Clinic.
Many people are able to achieve that just by cutting out junk food, sweets and sugary beverages and eating more fresh fruits and vegetables, lean protein and whole grains. SlimFast shakes are highly processed dietary supplements; while they can help some people lower their calorie intake, eating whole fresh foods is always a healthier choice.
Jill Corleone is a registered dietitian with more than 20 years of experience. Jody Braverman is a professional writer and editor based in Atlanta, GA. She received a Bachelor of Arts in English from the University of Maryland, and she is a certified personal trainer, fitness nutrition specialist, and yoga teacher.
She has written for various online and print publications, including Livestrong. Visit the writer at www. Connect on LinkedIn. Slim-Fast shakes can help you lose weight, but they don't make up a complete diet.
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