Skip to content
My WebMD Sign In, Sign Up

Weight Loss & Diet Plans

Font Size

The Fat Smash Diet

The Promise

If you’re ready to “smash” bad eating habits in favor of building good ones, The Fat Smash Diet might be for you.

The name may sound radical, but the plan is based on healthy principles. For instance, you eat a lot of fruits and vegetables.

It's not an overnight fix. Give it 90 days, and you'll change your relationship with food.

The plan comes from Ian K. Smith, MD, who serves on the President’s Council on Fitness, Sports & Nutrition and is the author of other diet books including Shred and The 4-Day Diet.

What You Can Eat and What You Can't

This diet has four phases:

  1. Detox: The program starts with a 9-day vegetarian “detox” phase based on meals of mostly produce. Meat, fish, pasta, and alcohol are forbidden.
  2. Foundation: This phase loosens up. You can have meats, fish, and some alcohol and healthy grains and fats. You exercise a bit longer, too.
  3. Construction: You add more variety to the diet to sharpen your focus on portion control.
  4. Temple: You keep adding more foods, and work to get back on track if you had any slip-ups on the plan earlier.

Level of Effort: Medium

The plan starts out strict, but it becomes pretty easy to follow later on, and it leaves you with good habits that last.

Limitations: You have the most limitations during the diet’s first phase. It only lasts 9 days, but it's a big change from the typical American diet.

Cooking and shopping: You can buy many foods ready-made. But preparing at home is recommended so that you control portion sizes and know exactly what's in it. The book includes easy sample recipes for each phase.

Packaged foods or meals: No.

In-person meetings: No.

Exercise: Exercise is required, and you'll work out longer and harder in each phase.  You start with at least 30 minutes of cardio training, and gradually add more time. You start weight training in the last phase of the plan.

Does It Allow for Dietary Restrictions or Preferences?

Vegetarians and vegans: Yes. You just need alternate proteins to substitute for the meats, eggs, and dairy products.

Gluten-free diet: Gluten isn't the focus of this diet, but if you want to go gluten-free, you can make that work.

What Else You Should Know

Cost: Prices will vary in different regions of the country, but grocery costs would not be more than $30-$40 per week for all foods.

Support: Many Fat Smash dieters have joined the online support communities linked to Smith. The Facebook and Twitter community “Shredder Nation” is particularly active. Though it’s associated with Smith's later book, Shred, many members are using The Fat Smash Diet and his other programs.

Today on WebMD

measuring waist
4 tips for shedding yours.
apple cider vinegar
Does it have health benefits?
 
Chocolate truffle
For weight loss, some aren’t so bad after all.
woman holding red dress
24 simple, practical tips.
 
woman shopping fresh produce
Video
butter curl on knife
Quiz
 
eating out healthy
Article
Smiling woman, red hair
Article
 
thumbnail_woman_tossing_spinach
Video
lunchbox
Article
 
What Girls Need To Know About Eating Disorders
Article
teen squeezing into jeans
fitfor Teens
 

Special Sections