Level of Effort: Medium
Limitations: In Phase 1, you can’t have alcohol, soda, trans fats, fried foods, white bread, or full-fat milk and yogurt. In Phases 2 and 3, you may use some of those foods as your "anything-goes calories."
Cooking and shopping: You’ll cook or eat as usual, as long as you stick to the Best Life guidelines and add the vitamins and supplements Greene suggests.
Packaged foods or meals? No.
In-person meetings? No.
Does It Allow for Dietary Restrictions or Preferences?
Vegetarians and vegans: You can easily adjust this diet to make it work for you.
Low-salt: The plan slowly phases out high-sodium foods. But if you're closely watching your sodium levels, check food labels. The same goes for fat.
Gluten-free: This diet doesn't specifically avoid gluten, so check food labels carefully. The Best Life web site says you can set diet preferences and add custom foods when choosing a meal plan.
What Else You Should Know
Cost: None besides your groceries.