The Taste You'll Love From The Brand You Trust
The taste you'll love from the brand you trust
For over 40 years, millions of Americans have trusted SlimFast to lose weight fast and keep it off.* Why?

It Works!

50 clinical studies prove the SlimFast Plan helps you effectively lose weight. You can see results in just 1 week!* So, reach for the experience of over 40 years of clinically-proven SlimFast success to help you lose weight fast and keep it off.

SlimFast Original 123 Plan
SlimFast Original 123 Plan

It’s Delicious!

There’s a reason why the SlimFast Original shakes have remained popular for so many years ... they taste amazing! Packed with 10g of protein, 5g of fiber, and 24 vitamins and minerals, each weight loss shake is a total meal replacement solution, but tastes like an indulgent treat!

It’s Flexible!

Available in both versatile shake mix powder and ready-to-drink shakes, SlimFast Original is easy to enjoy at home, work, or on-the-go. Blend up your favorite custom breakfast creation or grab a bottle and go - either way adds a little more delicious to your day.

Real Success Stories

Get inspired by real men and women who have lost weight on the SlimFast Plan! Meet Tonia, a mother of 4 who admits she “packed on the pounds” during her pregnancy years. While she gained weight, she lost her confidence and energy to keep up with her kids. Simply by following the SlimFast Plan for 48 weeks, Tonia reached her goal weight, without feeling deprived.

Tonia lost 90 lbs. and 25” in 48 weeks

50 Clinical Studies

You may know that the SlimFast Plan has been trusted for over 40 years to help Americans lose weight fast and keep it off, but did you know that the SlimFast Plan is backed by 50 clinical studies? Combining the proven science with the guidance of our Registered Dietitian and SlimFast Plan consultant, Maryann Walsh, the flexible and delicious SlimFast Plan encourages positive lifestyle changes to achieve weight loss goals and long-term success.

Original Quick-Start Guide

SlimFast Original has a taste you'll love with rich and creamy shakes and customizable smoothies. This Plan combines the simplicity of the SlimFast Plan and the Original line's 40 years of proven weight loss success.