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Does It Allow for Dietary Restrictions or Preferences?

Vegetarian or vegan: The diet includes options that would work for you.

Gluten-free: You'll avoid wheat during weeks 2-4 of this diet. But gluten isn't only in wheat, so you'll need to check food labels. The maintenance part of this plan is pretty flexible, so you can cut out gluten if you want to.

What Else You Should Know

The UltraMetabolism diet doesn't focus on portion sizes or calories. The plan claims to control hunger naturally; but if you're not careful, you could overeat.

Before you take all the recommended supplements, it's a good idea to check with a doctor to make sure they're safe for you.

Cost: There are no additional costs for food, but the supplements can get pricey. Hyman also recommends organic foods, which are often more expensive than conventional foods.

Support: You do this diet on your own.

WebMD Medical Reference

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