If you are lactose intolerant, you are not alone. The incidence of lactose intolerance is as high as 80% in Asian and African Americans, and 50% in Hispanics. In addition, wheat (and gluten) intolerance, or allergy is also very common.
If you have any of these issues, you can still follow the BuiltLean Program. In the BuiltLean nutrition guide, you'll find different meal and snack options that are appropriate for gluten-free, dairy-free, vegetarian, and paleo diets.
With that said, you should always check with your physician before starting an exercise, and/or nutrition program, especially if you have any special clinical, or medical considerations.