Please see our Pre-Op Diet guide. This will depend on what your body mass index is. The higher your BMI, the longer your pre-op bariatric diet will be.

Start the pre-op diet based on you’re current BMI. (*BMI is in BOLD)

• <35 = 2 days clear liquids only
• 36-45 = 1-week pre-op diet including two days of clear liquids
• 46-54 = 2 weeks pre-op diet including two days of clear liquids
• 55+ = 3 weeks pre-op diet including two days of clear liquids

Did you find out if you qualify? Take the first step by filling out a health questionnaire here:

Related Resources:

• Bariatric Surgery Pre-Op Diet Guide
• What is the purpose of the pre-op diet?
• Gastric Sleeve Pre-Op Diet
• Gastric Bypass Pre-Op Diet
• Liquids You Can Have Just Before Gastric Sleeve Surgery