Pre-workout and post-workout supplement questions

Member

1. Have any of you tried any of the pre-workout "stacker" products? Thoughts/comments? Looks like all they are is a shot of caffeine to help kick-start your workout. What am I missing here?

2. Protein Isolate - I tried an Isopure "ion exchange whey protein isolate" drink after my workout today for the first time. It was like a fruit drink with 40g of protein, zero carbs, no aspartame or preservatives, & 160 calories. Any of you tried this before? How does it compare with the traditional whey protein shakes made with low-fat milk? (Seems like I'm losing some calories.)

I guess the bottom line is that if its liquid protein (30 - 40 grams) and you take it post-workout within 90 minutes, it doesn't really matter which protein supplement you take?

Member

I only use sports drinks, Gatorade, Accelerade, and Endurox R4.

Caffine does prolong endurance activities. Just be carefull on how much because it is a diuretic.

Post workout: The body can only absorb 23-24 g of protein at a time so anything over that is a waste of money. If I am going from the gym to work I use R4. If I am at home, I have some chocolate milk, shower then a meal.

Excelent

Post workout I do a recovery drink+protein (16-20 ounces mixed together)

Pre-workout, good old H₂O

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Frightened Inmate #2

Member

Please do TriBob. Most of the whey protein shakes I've seen have 30 - 45 gms of protein.

Member

For faster recoveries I am an Endurox fan.

Member

I can't find the grams per hour article. But, here are two on the dangers of high protein diets.

Protein Diet Danger

http://my.webmd.com/content/Article/50/40331.htm?pagenumber=4

According to the American Dietetic Association, low-carbohydrate diets trigger short-term weight loss through a process called ketosis. This process kicks in when your body is in short supply of carbohydrates, a prime source of energy for the entire body, but especially for the brain, which operates exclusively on carbohydrates.

During ketosis, your carbohydrate-depleted body grabs other sources, including ketones from stored fat or protein from muscle, to satisfy daily energy needs. This can lead to ketoacidosis, a state similar to that of diabetes. This type of diet can trigger weight loss, but it can have the kinds of negative long-term effects on health that Barnard mentions.

Protein and Kidney Stones

http://my.webmd.com/content/article/33/1728_84384.htm?lastselectedguid={5FE84E90-BC77-4056-A91C-9531713CA348}

On average, the men with a history of kidney stones developed higher levels of oxalate in their urine while on the high protein diet compared with the medium protein diet. This pattern was not seen in the men with no history of kidney stones.

Donna Glad Blythe, MD, a board-certified kidney specialist practicing in Miami, agrees with the findings. "If you are a kidney stone former, you should not be on a high protein diet. ... Stone formers should decrease from a high protein diet to a medium protein diet."

Member

I'm not on Atkins or a low-carb diet, at all. I'm watching my refined carb intake no doubt, but I still enjoy breads, pastas, crackers. I'm also not a risk for kidney stones, therfore I don't see how that would apply to me.

Many muscle/fitness mags I've seen advocate a whey protein shake and energy/protein bar for post-workout meal within 60 minutes.

Member

Thats good.

I am for protein after a workout and whey is supposed to be a great source. To fit 40 grams of protein into one meal is a lot especially for an endurance athlete.

Gone Fishin

I've come across that too Bob. Since the body only absorbs so much protein at a sitting, the rest just becomes colon fill. That'd be why I guess most Atkins dieters are so blasted constipated.

One thing I did and was eye-opening was to take the protein and other nutritional information of something like Jogmate and compare it to something like sardines. Ya know what? Those two things are identical in nutritional impact. During hard training periods, I do the post workout sardine can and that's my supplement Mr. Green

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Member

If this stuff is true... How long do you think it takes your kidneys to process protein?

Member

I've done some research about recommended protein intake & timing. I haven't found anything that says your body can only absorb ~25 grams of protein at any one time. Everything I've read says you should take around .80 to 1 gram of protein (and 2 grams of carbs) each day for every pound you weigh (if you are actively weight training).

This article on Muscle & Fitness' web site says it doesn't really matter if you take ALL of your daily protein in one setting.

Pre-workout and post-workout supplement questions

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