Guest guest Posted June 4, 2004 Report Share Posted June 4, 2004 > How on earth does the statement > " a banana is 12% carbohydrate " > translate to grams of carbohydrate? Rolf, the edible part of a raw banana (i.e., excluding the skin) is mostly carbohydrate and water plus a large number of nutritious trace elements, minerals and vitamins. A typical raw banana is 21.4% digestible and 1.8% indigestible carbohydrate by weight or 23.2% of total carbohydrate (dried banana is 75.2% digestible CH and 12% indigestible CH by weight or 87% total CH). This means that 1 kilogram of raw bananas without skin has 214 grams of digestible carbohydrate and 18 grams of " fiber " in it. An average Chiquita banana that we get over here weighs about 180 grams, of which about 118 grams is edible and 62 grams is skin. So a typical banana has 118 x 0.232 = 27.4 grams of total carbohydrate or 118 x 0.214 =25.2 grams of digestible carbohydrate). If you take that as a percentage of the whole raw banana as we get it from the store, 25.2/180 x 100, then that works out at 14% digestible carbohydrate in a typical unskinned Chiquita banana. Whoever worked out that figure of 12% could very well have been taking a different type of banana as being typical and it came out to 12% but in any event, the 12% (or some figure like it) must apply to the whole banana and not just the edible part. It is not usual in Europe to refer the nutrient content to the complete fruit but to 100 grams of the edible part. We know banana as being 21.4% digestible carbohydrate, i.e. in every 100 grams of skinned raw banana there will be 21.4 grams of carbohydrate to be taken into account when dosing insulin. My wife and I eat one banana a day each. Regards Thornton Pforzheim, Germany Quote Link to comment Share on other sites More sharing options...
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