I-BLOCK is the smart choice for those occasions when you want to enjoy foods high in carbohydrates and sugar, but still need to reduce calorie intake and maintain healthy blood sugar levels. Used in conjunction with a reduced-calorie diet and appropriate physical activity, I-BLOCK is an effective tool to help you achieve and maintain a healthy weight. Inside each convenient single-serving packet of I-BLOCK are two tablets containing a proprietary complex called TanitolTM. Developed at the crossroads of science and nature, Tanitol's innovative formula is derived through the synthesis of natural extracts from the highest quality sourced grape marc (Vitis Vinifera) and L-arabinose (Zea Mays). During development, each plant's natural carbohydrate-blocking properties are optimized to maximize the weight-loss results of a healthy lifestyle. In fact, clinical studies have shown that taking supplements containing TanitolTM, such as I-BLOCK (in addition to a calorie-controlled diet), can result in four times more weight loss than dieting and exercise alone.* How TanitolTM Works: By taking TanitolTM prior to eating, digestive enzymes are inhibited from breaking down carbohydrates and sugars. This action prevents some of the carbohydrates and sugars from being absorbed in the digestive tract, thus reducing calorie intake. As a result, TanitolTM helps individuals maintain a healthy blood-sugar level and manage weight fluctuations associated with carb and sugar consumption. *In a randomized, double-blind, placebo controlled human clinical trial involving 120 participants ages 18-60 with a baseline BMI of 25-35 kg/m2, subjects taking the product 2x daily for 12 weeks before 2 meals containing the most carbs and sugars lost an average of 7.2 lbs vs 1.83 lbs for the placebo group.