lulubel
Über Member
- Location
- Malaga, Spain
Sorry, just read this this. What you say is right and I largely agree but you're missing a piece of the puzzle. The sugar highs and dips explain the issue with sugary fruit juice, starchy carbs etc. All the quick energy. Fruit juice has all the sugar of multiple pieces of fruit with none of the digestable fibre to slow down the energy release. Same with the quick energy release of syatchy carbs. Or so I've read in many, many places. Too much sugar in the system (inc from digesting starchy carbs) creates an insulin response which results in fat storage. The high level of insulin also results in the body not beibg able to access fat in the fat cells. When the blood sugar drops (the lows you mentioned) the body cannot access stored fat for energy so needs to eat again and fast so you go for more divert type food and the cycle continues. With time your body becomes more insulin resistant but your fat cells become resistant slower resulting in a higher proportion of fat being stored in your fat cells. This is one of the reasons why not all calories are equal and glycemic index and glycemic load came about in dieting. Glycemic index includes portion size (which you've spoken about) while glycemic load focuees on energy release.
The problem with what you're saying here is that you're using the general term "starchy carbs" which people take to mean something other than what I think you're trying to say. I prefer to use the term "processed carbs" in the context you're using it, which covers white bread, white pasta, etc. This separates the type of cabohydrate that does cause highs and lows from the wholegrain carbs, which are high fibre, contain more protein, and are digested slower. (When you say "starchy carbs" are bad, most people will assume you mean all bread, all rice, etc, and I don't think you're saying that.)
Generally, I think I agree with what you're saying, although I don't usually go into it in so much depth because most people don't care!
As for fruit juice, it has 2 - maybe 3 - uses in my life. It thins down a smoothie to the point where you can actually drink it rather than needing to eat it with a spoon, it's great before an early morning run when I don't have time to digest something solid before I go, and (the possible 3rd use) it's one of the first things I'd look for if I was close to bonking and had to get some carbs in me quick. Otherwise, I'd rather eat fruit.