What is a Low Calorie Diet?

What is a Low Calorie Diet?

A low calorie diet is a clinically proven diet plan that involves eating about 800 calories a day or fewer. They are considered for overweight and obese people who are managing diabetes.

Our Featured Diet Plans

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

Speak To Our Dietitian

OPTIFAST customers have free access to Caroline's expertise - she's available to answer your questions about OPTIFAST products and plans. 

Start a conversation

Maintain Your Desired Weight For Good

Our Maintenance Plan is designed to help you to maintain your desired body weight, particularly after weight loss. Enjoy 28% off on 8 weeks maintenance diet plan, for just £1.84 per meal.

Shop 4 Weeks Plan Shop 8 Weeks Plan

3 Days Trial Pack

This plan is specially designed to help people in their weight loss journey in a structured and efficient way. Enjoy 4 OPTIFAST meals a day as your sole food consumption with total calories intake per day: average 800 kcal.

Shop Now
A Women doing exercise in the park

Want To Find Your Perfect Diet Plan?

To help you decide which diet plan is perfect for you,
Click below to calculate your BMI and discover our recommended plan for you.