3 Days Starter Pack
Buy 3 Get 2 for Free!

Pick your shakes and bar to get 2 extra boxes of meal bars.

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Optifast flexible weight loss programmes
Optifast is recommended by health care professionals
Optifast provides support and advice
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Latest Offers

Discover our exclusive offers for your summer goal.

Spend £50+ and Save 25%

Save 25% on meal replacements, pick your ideal recipe today!

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Enjoy 15% Off All Orders

Enter OPTIJUNE at checkout for extra 15% off on your order.

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Free Shaker

Get a free shaker when you spend over £40. Bring your health and fitness goals to life.

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Shop Diet Plans With 25% Off

Start your journey with OPTIFAST for the new chapter.

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Best Selling Weight Loss Diet Plan

OPTIFAST offers several plans for you to choose from, depending on your weight loss goals and your lifestyle.

FULL 6 WEEKS DIET PLAN

Contains 146 bestselling meal replacements for the full 6 week duration of the plan.

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4-6 WEEKS DIET PLAN

Complete your OPTIFAST journey with the last bundle containing 56 meal replacements.

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Optifast 6 weeks diet plan - first 2 weeks diet plan

FIRST 2 WEEKS DIET PLAN

Designed for a two week duration of the plan containing 58 bestselling products to support your journey.

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Your Strength. Our Plan.

We know losing weight can be a struggle with ups and downs, that’s where OPTIFAST® comes in — to help you unlock your inner strength and succeed with the right plan for you.

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See How OPTIFAST Can Support You on Your Journey.

OPTIFAST offers multiple eating plans that you can personalise for your own lifestyle. View our plans and see which plan best meets your needs.

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Our Diet Meals

Our plans are designed to help people who want to be successful in achieving the health benefits of weight loss.
Discover our product range.

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Shakes

Part of our diet plans include easy to mix shakes with tasty flavours to help you achieve significant weight loss.

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Bars

A convenient solution for those busy days when you're on the go, it makes a satisfying meal replacement.

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Soups

A satisfying warm meal replacement in minutes, OPTIFAST Soup Mix is simple and quick to prepare for lunch or dinner.

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Desserts

Adds a tasty variation to your weight loss plan. Just add water, sets in 5 minutes, no shopping, no meal planning.

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Find Your Perfect Diet Plan

OPTIFAST offers several plans for you to choose from, depending on your weight loss goals and your personal lifestyle.

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Six Week Plan

A plan designed to help you kick start weight loss in a structured way, in just 6 weeks.

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Intermittent Fasting Plan

A flexible plan that helps you lose or maintain weight without significantly reducing calorie intake every day.

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Partial Meal Replacement

Our most flexible diet plan, you can eat more conventional foods than if you were to follow a different plan.

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Maintenance Plan

A plan designed to help you maintain your desired weight, you can use up to two OPTIFAST products a day.

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