caffine

Does anyone know if caffine inhibits glycogen from being stored or if it "turns" A low GI carb into a high one... And what effect would it have on a reduced calorie diet which had carbs included.

kind of a stupid question but I want to get the best bang for buck when it comes to energy and I aint talkin bout trickin my shit. ;-)

I don't think caffiene has any effects on glycogen storage...nor will it change carbs into low or high GI's. In fact I don't think any meds can do this per se.

Caffiene will however have a positive effect on metabolism; thermogenisis. Caffiene is used as an energy booster. Which in itself is actually tricking your body.

I have seen studies as where it does increase metabolism up to 8% but this only lasts about 1-2 days tops..... I have seen studies where it messes with glycogen replenishment(keto diet doesnt allow caffine on carb up days also) I also understand it works synergistically with effedrine and aspirin to increase metabolic rate... but not too ignifigantly in fact 80% of fat loss with this combo comes mainly from the hunger supressive effects. I would just like to make sure that caffine during a diet would make perfect sense in terms of glycogen replenishment and workout levels.

Athough I don't have supporting evidence I would think taking caffine would decrease glycogen. To my understanding anything that speeds your metabolism whether it be a drug or a physical activity decreases glycogen. Therefore its not the caffine, its the effects of caffine. Maybe this is why everyone feels tired after coming off of any kind of prolonged "go fast" drug. And I would agree that the ECA stack hinges mostly on hunger supression.

Here is a post by england i thought would help to shed some like on the subject:

While there were several interesting topics presented, including a lecture given by a MD/PhD and research superstar Wim Saris who confirmed all of my incessant ramblings about the value of protein and amino acids with glucose and maltodextrin in a post-workout drink, the topic I found most interesting was the research presented on caffeine/coffee and insulin sensitivity.

For a while now I've been cautioning my clients and T-mag readers about the ill effects caffeine and typical thermogenic agents have on insulin sensitivity. Well, at the University of Guelph they've been investigating this issue intensively and here's what they found:

1) Caffeine intake (in all of its forms) decreases whole body glucose disposal (carbohydrate uptake) by 15-30%.

2) Caffeine intake decreases skeletal muscle glucose disposal by 50%.

3) When consumed with a standard carbohydrate breakfast, caffeine decreases insulin sensitivity, leading to large increases in blood insulin. But even in the face of this insulin surge, blood glucose doesn't disappear at a normal rate. When the body can't take up carbohydrates properly (as when drinking coffee), it releases loads of insulin to help out. However, the coffee actually prevents the insulin from doing this job and you end up with high insulin and glucose. That, my friends, is the serum profile of the obese, type II diabetic.

4) Caffeine decreases insulin sensitivity for at least three hours (this is the duration of the longest study they've performed), but the true duration of the effect isn't known. I speculate that it's at least five hours, the half life of caffeine.

In this case, many people are probably walking around all day with impaired insulin sensitivity. If you're a coffee drinker you should realize that you're living your life like a diabetic except during the times that it could actually be diagnosed. When you go to the doc to see why you're so fat or you feel like crap (if you have any glucose or insulin tolerance problems), what do you have to do? You have to fast overnight and avoid coffee! So 99% of your waking life you're functionally diabetic and that 1% of the time when it really matters and can be diagnosed, you're not. No wonder experts suggest that 50% of North Americans are diabetics who aren't diagnosed as such.

5) In one study, four groups were used to evaluate the effect of caffeine and glycemic index on insulin sensitivity.

• The first group got decaf and a low-GI breakfast. They saw a normal blood glucose and insulin response.

• The second group got decaf and a high-GI breakfast. They saw a bigger insulin and glucose response in the blood.

• However, when the low GI group got regular coffee with breakfast, their blood profile was worse than that of those who got the high-glycemic breakfast and decaf. Therefore coffee/caffeine can turn a low glycemic meal into a high glycemic meal!

• Finally, the group that drank coffee and had the high-glycemic meal ended up looking like diabetics.

6) One interesting hypothesis generated at the seminar was as follows: In terms of insulin sensitivity, caffeine alone is worse than coffee and obviously (as seen above) coffee is worse than nothing. However, some people believe that certain substances in coffee (specific quinides) can actually increase glucose disposal and improve insulin sensitivity. While the quinide content of coffee isn't strong enough to counter the effects of the caffeine, the quinides in decaf coffee may actually increase glucose and insulin tolerance. This hypothesis still needs to be tested and proper doses have yet to be discussed; however, keep your eyes out for this research in the near future.

So the final word on coffee and caffeine is this — stay the heck away from it! The only way to minimize the damage it causes may be to drink your coffee with a very low carbohydrate meal and eat only low carb meals for the next few hours after your coffee intake. I know, I know, it now sucks to be a coffee drinker! But giving up your java may bring you some great health and physique benefits.

Not to mention that caffeine is also a mild diuretic. Great post! I'm saving this one in my library.

NP bro, i thought it might be able to help shed some light. Thanks E though since he orginally posted it.