USDA Food & Nutrient Database
Find out exactly what is in your food!  How many grams of sugar, fat, and protein are in a single food item.

NIH BMI Calculator
Find your BMI (body mass index).   BMI is the number that qualifies you for surgery according to NIH and insurance companies.  The higher the BMI, the greater risk of disease related to obesity.  A BMI of 40 and higher qualifies you for bariatric surgery.  A BMI of 35-39 will qualify you for surgery if you have significant comorbidities, such as hypertension, sleep apnea, diabetes, etc.

American Society for Metabolic & Bariatric Surgery
Provides education and support to surgeons, allied health professionals, and patients considering bariatric surgery. 

Obesity Help
This site provides weight loss resources, message boards and chat rooms.

Online Vitamin Stores:

Nutrametrix Isotonic Liquid Vitamins & Antioxidant Supplements. 
Isotonic-capable nutritional supplements are absorbed better and faster than most vitamin products since they are in a readily absorbed form not requiring the body to break it down.  

The bariatricestore.org Bariatric Advantage Chewable Vitamins & Protein Supplements.