During the first week of Slim Fast, you will probably drop 2-3 pounds. Slim Fast greatly limits the number of calories consumed each day, so expect a dramatic weight loss. This diet combines eating their products with making your own healthy meals, so if you want some flexibility, Slim Fast is perfect. You can also just pick Slim Fast products up at your local grocery store for a relatively low price.

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The Bad

Selection

Slim Fast only offers bars and shakes to dieters. Their limited selection can grow old very quickly. While you might be able to keep up with replacing one meal with a Slim Fast product for a while, the small selection can get old fast. TBC has a few concerns with Slim Fast:

The diet may not provide adequate calories or nutrition
There is no health coach or outside support
There are only 3 types of "meals" to choose from

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The Bottom Line

Slim Fast is great for people who want to do just that - lose a few pounds quickly. Dieters do not consume very many calories on Slim Fast, so it's okay for a few days, but not long-term. However, if you want to replace a meal or snacks with Slim Fast products, that seems to be more sustainable.

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User Reviews

Star Rating

3.9

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37 Reviews

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41%

4 grade

30%

3 grade

16%

2 grade

1 grade

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Helena Danby Shelley, ID

I did not notice that Slim Fast had any positive effect on my weightloss while I used this meal plan, which is what the intended purpose was. Most items did taste good though.

5 years ago

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Doyal Stewart Salt Lake City, UT

Slimfast is okay for a little shake, I like to drink them and eat an apple for breakfast. I have found other shakes that I like better than Slimfast though. But, they aren't bad.

9 years ago

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Hailee Coleman Columbia, MO

At first, Slim-Fast seemed like a fantastic idea for my diet plan. I was mostly excited to drink the meal replacement shakes. Personally, I did not like them as much as I thought I would. Also, the amount of carbs in the protein meal replacement shakes is astronomical, and did not affect my diet in any way.

4 years ago