I was having a discussion with a guy who was gonna be doing an ironman. I was telling him there's a limit to how much you should eat, considering you can only absorb so much food while you're out exercising. I said it was probably between 150 - 200 calories (i.e. kCal) an hour, but he seemed skeptical, which made me skeptical too.
So I was wondering: are there any studies out there that measure how much food can be:
1. Digested
2. Absorbed and converted into usable energy
On a related note, how can this be subdivided into:
1. Sugars (simple carbs)
a. Between different types of sugars, e.g. glucose, sucrose, di / oligo saccharides
2. Starchy foods (complex carbs)
3. Protein
4. Amino acids (digested protein)
5. Fats
Would such combinations increase the amount of energy replenished? E.g. would sugar + protein (a la accelerade, and other protein + sugar drinks) allow you to absorb more calorific energy per hour?
And how would this be affected by what physiological state you're in? i.e. exercising (in different zones?), bumming around, sleeping...
Comprehensive question, hoping to obtain comprehensive answer from the slowtwitch experts out there...
___________________________
Chewie
Slowtwitch Aeroweenie since '06
So I was wondering: are there any studies out there that measure how much food can be:
1. Digested
2. Absorbed and converted into usable energy
On a related note, how can this be subdivided into:
1. Sugars (simple carbs)
a. Between different types of sugars, e.g. glucose, sucrose, di / oligo saccharides
2. Starchy foods (complex carbs)
3. Protein
4. Amino acids (digested protein)
5. Fats
Would such combinations increase the amount of energy replenished? E.g. would sugar + protein (a la accelerade, and other protein + sugar drinks) allow you to absorb more calorific energy per hour?
And how would this be affected by what physiological state you're in? i.e. exercising (in different zones?), bumming around, sleeping...
Comprehensive question, hoping to obtain comprehensive answer from the slowtwitch experts out there...
___________________________
Chewie
Slowtwitch Aeroweenie since '06