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Diego wrote: I wanted to know what kind of carbs my post workout meal should have. My goal is putting on lean mass and reducing BF. So far after a grueling weight session i eat a bowl of Honey Cheerios with milk. Obviously a High GI carb rich meal. I am under the perception that High GI carbs consumed immediately after a workout are good in terms of glucose levels and spiking insulin. But is this method good for losing BF and gaining lean mass? should i rather consume low GI carbs such as oats or brown rice?
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Etwa wrote: how sure is pretty sure?
John Berardi wrote: Fructose is a simple carbohydrate unit, but it's structurally different from glucose. Due to its structure, it can possibly cause GI problems and/or decrease fluid uptake with exercise. Fructose, unlike other simple carbs, has to be "treated" in the liver and it reaches the muscle slowly.
Finally, sucrose consists of glucose and fructose units bonded together. Therefore, upon digestion, you get glucose and fructose in the GI (and the benefits and consequences of each).
Based on the three studies I reviewed (Blom et al 1987, ven Den Burgh et al 1996, Piehl et al 2000), it appears that dextrose is 72% faster than fructose for muscle glycogen resynthesis . As a result, at the end of 8 hours, muscle glycogen was 30% higher with dextrose ingestion. However, in another study, at the end of 4 hours, muscle glycogen was 15% higher with maltodextrin ingestion vs. dextrose. So dextrose kicks fructose's butt although malto beats up on dextrose.
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Deadgoat wrote:
Etwa wrote: how sure is pretty sure?
John Berardi wrote: Fructose is a simple carbohydrate unit, but it's structurally different from glucose. Due to its structure, it can possibly cause GI problems and/or decrease fluid uptake with exercise. Fructose, unlike other simple carbs, has to be "treated" in the liver and it reaches the muscle slowly.
Finally, sucrose consists of glucose and fructose units bonded together. Therefore, upon digestion, you get glucose and fructose in the GI (and the benefits and consequences of each).
Based on the three studies I reviewed (Blom et al 1987, ven Den Burgh et al 1996, Piehl et al 2000), it appears that dextrose is 72% faster than fructose for muscle glycogen resynthesis . As a result, at the end of 8 hours, muscle glycogen was 30% higher with dextrose ingestion. However, in another study, at the end of 4 hours, muscle glycogen was 15% higher with maltodextrin ingestion vs. dextrose. So dextrose kicks fructose's butt although malto beats up on dextrose.
Link:
www.johnberardi.com/articles/nutrition/leaneating_2.htm
Fructose doesn't increase blood sugar and therefore does not require insulin to be released
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