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Originally Posted by nownow  Unfortunately fruits have some sucrose and some have very much. A banana, for example, has three times as much glucose/sucrose than fructose. Excessive sugar intake may result in hypoglycemia (low blood sugar) which will make one cranky, foggy headed and always hungry. If the pancreas gives out one day from having to produce too much insulin to reduce blood sugar then you may become diabetic and experience sugar spikes. |
Actually, there are tons of testimonials of diabetics being able to reduce or eliminate supplemental insulin when following this sort of diet.
The key is the very low amount of fat. Just adding lots of fruit to a high fat diet will wreak havoc with the body, absolutely, because all those sugars get trapped in the bloodstream and the body keeps pumping more insulin to try to deal with them. But when you're not clogged up with fat, that sugar moves in & out of your bloodstream in a matter of minutes, with much less insulin needed. For a detailed explanation, see the 80-10-10 book (or other writings on low fat high fruit diets), but here's a very brief explanation: Fat coats everything. It will coat the sugar in the blood, the insulin, and the receptor sites which the insulin uses to move the sugar out of the blood. This messes up the process, enough so that much of the sugar just gets trapped in the blood. The body continues sensing the sugar in the blood and keeps pumping more insulin (often using adrenaline to push the pancreas to increase insulin production). Eventually, you end up with an excess of insulin which, when enough fat has cleared away, then removes too much sugar. The results of this process include the mood swings, energy level swings, etc., that you mention, and it is indeed very hard on the pancreas.