Do fruits such as apples give you a sugar rush then a "low"? I think I experienced this the other day and wondered if I ate too early or should have eaten something else to reduce the speed that the sugar gets in the blood. I ate an egg white to slow down sugar absorption and keep the sleepiness at bay.
It is just possible, if you have a weakened blood sugar control system (or you are diabetic), that apples will give a small rush and then slump.
1. You can try diluting them by eating a lower glycemic fruit, such as a grapefruit, at the same time .
2. You can try spreading out the consumption over a longer period of time.
3. You can try eating vegetation (such as salad) beforehand or at the same time. (this is less desirable from combining point of view) It is not recommended to eat too much protein (such as egg white ) before eating fruit for the same reason. (although just one or two whites are not a big deal -- and it might just help)
— Geoff Bond, The Bond Briefing, July 2001
Fructose has a low Glycemic Index. Is it therefore safe to use it as a straight substitute for sugar (sucrose)?
It is true that fructose is a sugar to which the human body is well adapted. Not surprising really, since we are built to consume good quantities of fruit - and fructose is the chief sugar in the ‘safe’ fruits. However there’s the rub. Even so, we are not going to be consuming (from the fruit) more than the equivalent of about 2 tbs. per day of fructose. Whereas the average consumption of sugar in the US is over ½ lb.! If we were to eat ½ lb. per day of fructose then that would give us problems too. Admittedly not to do with blood-sugar spikes and the horrors of hyperinsulinemia, but with other health undermining factors. First of all, fructose is still empty calories. ½ lb. fructose is about 250 cal. Next, fructose quantities upsets blood lipid profiles. It tends to increase triglycerides, and LDL levels. Finally, fructose at these levels can also cause intestinal upsets. So fructose is not a free ride! Use it abstemiously to help bake the occasional dessert.
-- And that’s about it! Some practical points:
• Fructose is sweeter than sugar, so you can use 2/3 the quantity.
• Fructose does not caramelize.
• High fructose corn-syrup is not fructose. It is just like ordinary sugar. The Bottom Line? Fructose is a helpful adjunct to the strategies for savvy eating in the modern world. But it is more important to train the palate (and the body) to not crave sweetness in all our foodstuffs
— Geoff Bond, The Bond Briefing, June 1999
What do you say to others when they ask you the question "if sugar is bad for your health, why do you eat fruit? There is sugar in fruit!"
Indeed there is, but we tend to stick to low glycemic fruits (like most berries), go easy on the medium ones like apples and oranges – and avoid high sugar fruits like pineapple and melons. Having said that, the ‘glycemic load’ of most of these fruits is quite low. That is to say, you have to eat quite a lot to get a sugar rush.
— Geoff Bond, The Bond Briefing, September 2013