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OPTIFAST is a clinically proven, scientifically designed low calorie diet, recommended to manage weightloss. Our products are foods suitable both for total diet replacement or as a replacement for individual meals.
Top Heights UK Vouchers & for December 24, 2025
Get 30% Off Sitewide
Get 25% Off On Your First Order
Get Free Delivery On All Orders
Get 18% Off On All Orders
Get Up To 35% Off On All Diet Plans
Up To 20% Off On Everything
Up To 10% Off On Optifast Shakes
Get Free Box Of Dessert On All Orders Over £50
Refer A Friend And Save £10
Bars Starting From £17.00
Shakes Starting From £19.00
Soups Starting From £19.00
Dessert Starting From £19.00
Sign Up And Get 25% Off On Your First Order
Get 30% Off Sitewide
Get 25% Off On Your First Order
Get 18% Off On All Orders
Get Free Delivery On All Orders
Get Up To 35% Off On All Diet Plans
Up To 20% Off On Everything
Up To 10% Off On Optifast Shakes
Get Free Box Of Dessert On All Orders Over £50
Refer A Friend And Save £10
Bars Starting From £17.00
Shakes Starting From £19.00
Soups Starting From £19.00
Dessert Starting From £19.00
Sign Up And Get 25% Off On Your First Order
Optifast Offers Summary
Live Offers:
14
Top Offer:
20% Off
Last Updated:
Apr 30, 2026
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About Optifast
OPTIFAST is a clinically proven, scientifically designed low calorie diet, recommended to manage weightloss. Our products are foods suitable both for total diet replacement or as a replacement for individual meals.