SlimFast

Goal: to lose weight

Be aware: this is only the goal of this diet, not necessarily its outcome. Results vary from person to person. Consult your doctor or dietician before starting this (or any other) diet.

SlimFast

Slimfast is a brand of the American company SlimFast, under which several diet products are sold. These products also come with a diet: the SlimFast diet.

SlimFast also sells products that can be used with other diets, including the Keto diet.

On the homepage you can compare the SlimFast diet with other diets.

Slimfast diet

When you follow the SlimFast diet, you eat six times a day: three meals and three snacks. Two of the meals are replaced with SlimFast products. The third meal you make yourself. Whether this meal is breakfast, lunch or dinner is up to you. This may also vary from day to day.

The ‘regular’ meal

SlimFast recommends that the 'regular' (healthy) meal you make yourself should consist of vegetables, wholegrain products and proteins. It is also important that the meal does not contain too many calories as you can only eat about 1200-1400 calories a day on this diet.

Snacks

You are allowed three snacks a day and you consume these between the meals. You can choose between fruit, yoghurt or a SlimFast snack. The snacks should be around 100 calories each.

SlimFast products

SlimFast products are available in stores or online, depending on the country. The products range from ready-to-eat drink meals to bars, snacks, soups, pasta and shakes.

Drinking with the SlimFast diet

SlimFast recommends avoiding sugary drinks. It is also recommended to drink enough water.

SlimFast & exercise

SlimFast advises you to exercise at least 30 minutes per day.

When your target weight is reached

If you have lost weight after following this diet and want to maintain this new weight, the idea is that you continue to replace one meal a day with a SlimFast product. The other meals can be ‘regular’ meals as before.

SlimFast product lines

The SlimFast brand has several product lines. Besides SlimFast Original there are SlimFast Advanced Nutrition, SlimFast Advanced Energy, SlimFast Diabetic Weight Loss Formula and SlimFast keto. SlimFast keto is the newest line of SlimFast. This line contains low-carbohydrate products to fit the Keto diet.

Be aware

Consult your doctor or dietician before starting this (or any) diet.

Similar diets

SlimFast is often compared to Modifast, as it also replaces meals with, in this case, ModiFast products.

Other examples of similar diets are the FormaFast diet, the Optavia diet and the Cambridge (1 on 1) diet.

Did you notice a mistake?

Did you notice a mistake on this page? Please let us know.

Back to the homepage

Allowed

  • SlimFast products
  • Regular (healthy) meals
  • SlimFast snacks
  • Yoghurt
  • Fruits
  • Vegetables
  • Water
  • Protein products
  • Whole grain products

Not allowed

  • Sugary drinks

Goals

  • Lose weight
  • Less sugar

Exercise

Exercise for at least 30 minutes a day.

Reviews (0)
Add review

Dietitians

With the professional help of a dietitian it should be easier to reach your goals. Please contact a dietician in your area or talk to a doctor before starting any diet.

General warnings

Please take note that most diets do not have a scientific basis.

Consult your doctor or dietician before starting a diet, especially if you have a chronic condition like diabetes, cardiovascular disease, lung disease or kidney disease.

Eating disorders

If you think you might have an eating disorder (like anorexia or bulimia), it is important to look for professional help. Contact your (house) doctor or find help elsewhere. Here you can find a list of several websites that can provide (online) help. These sites also provide information for people that know someone with an eating disorder.