Which OPTIFAST Diet Plan is Right for Me?

happy woman sat on the sofa with her kitchen in the background

If you’re aiming to lose weight and embrace a healthier lifestyle, it can be difficult to know which diet plan to choose, as there are so many options out there. Here are some things to consider, which can help you determine which OPTIFAST diet plan best fits your lifestyle.

Don’t choose the first diet plan you come across, such as ‘The Cabbage Soup Diet’. It’s unlikely you’ll really want to eat nothing but cabbage soup for weeks on end – think about what’s important to you.

shredded cabbage

A diet plan that offers variety, tasty flavours and flexibility are key factors that can help you stay on track. All of the OPTIFAST diet plans offer these and the ability to choose among different plans depending on your goals.

Let’s take a look at which one could be right for you…

Six-Week Plan

Our Six-Week Plan is our most intense diet plan. It involves a total replacement of all of your meals for at least three weeks, using our scientifically designed OPTIFAST products, which include a range of different flavoured Bars, Shakes, Soups and Desserts.

This weight loss plan combines our nutritionally complete and scientifically designed OPTIFAST products and exercise tips with behavioural strategies that can fit easily into your lifestyle. It’s our best-selling plan and ideal for people who want to lose weight on their own using a structured plan to help them to stay on track.

After you’ve completed our Six-Week Plan, you can move on to one of our other diet plans to continue your weight loss journey with more conventional foods.

How It Works:

The First 3 Weeks

  • You’ll replace all conventional food meals with OPTIFAST meal replacement products, consuming approximately 800 calories a day

Weeks 4 & 5

  • You’ll start to reintroduce conventional meals, consuming three OPTIFAST meal replacement products a day, plus one low-calorie meal (try to focus on low-carb and non-processed ingredients)
  • You can also start to reintroduce regular light exercise at this stage

Week 6

  • Enjoy two OPTIFAST products a day, alongside two low-calorie meals, aiming for a total of 1,400-1,700 calories per day. Explore our collection of low-calorie recipes
Create Your Six-Week Plan Now


Intermittent Fasting

Our Intermittent Fasting plan can be used to help people lose and maintain weight. This diet plan gives you the flexibility to switch between periods of fasting and ‘feasting’, meaning you don’t need to restrict your caloric intake for too many days in a row.

Choose between alternate day fasting and 5:2 fasting to find an intermittent fasting plan that suits your lifestyle.

strawberry weight loss shake

How It Works:

  • With the alternate day fasting plan, you alternate between fast and feast days every other day.
  • For the 5:2 fasting plan, you will have five feast days a week and two fast days.

Fast Days

  • Replace your conventional meals with four OPTIFAST meal replacement products

Feast Days

  • Enjoy a combination of low-calorie conventional meals and OPTIFAST products up to a total of 1,200 calories a day for women and 1,500 calories a day for men
Create Your Intermittent Fasting Plan Now


Partial Meal Replacement

Partial Meal Replacement allows you to create your own weight loss plan. You can decide how many meals a day you’d like to replace with OPTIFAST products. The more meals you replace, the more weight you can lose.

woman cooking a healthy meal

For the partial meal replacement plan, you can choose from Intense Level or Active Level, depending on your personal goals.

How It Works:

Intense Level

  • Follow this plan for three weeks
  • Choose 3 OPTIFAST products a day plus one low-calorie meal
  • Aim to consume a total of 1,200 calories a day for women and 1,500 calories for men

Active Level

  • Follow this plan for five weeks for more gradual weight loss
  • Combine two OPTIFAST products with two low-calorie meals each day
  • Aim to consume a total of 1,200 calories a day for women and 1,500 calories for men
Create Your Partial Meal Replacement Plan Now


Weight Loss Maintenance Plan

A Maintenance Plan is designed to help you to maintain your body weight, particularly after weight loss.

How It Works:

  • Enjoy up to two OPTIFAST products a day and consume conventional foods for the rest of your meals and snacks
  • Aim to consume a total of 1,400 calories a day for women and 1,700 calories for men
  • Try to use OPTIFAST products during times when it may be difficult to stay on track, such as when you’re travelling, on the go or need a mid-afternoon snack
Shop Our Maintenance Plan Now


OPTIFAST & The NHS Low Calorie Diet Programme


OPTIFAST & The NHS Low Calorie Diet Programme

OPTIFAST is a preferred product supplier of Oviva, an NHS Low-Calorie Diet Programme provider.

2020-09-04 15:34:58By Health & Nutrition Expert

Health & Nutrition Expert

Health & Nutrition Expert

Writer and expert