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"I think you guys [gals ?] are the best. Free shipping on hammer products and super fast service. What's not to like?"

Nancy H.


Proline Sports Nutrition & Equipment,

I was shopping for the product below using Google as which time I saw your Google add. This was the first I heard of your company. I went to your site and liked what I saw and proceeded to order the Optygen HP. The order was placed on late Friday afternoon and was delivered (to my surprise) on Saturday. Your service is awesome as well as your price match guarantee. There is no doubt that I will continue to use you in the future, as well as recommend you to others.


Brian H
Aurora, IL
 I am very impressed with your customer service.  I was worried about getting my order with a marathon a week and a half out.  Wow, less than 24 hours and my order was sitting on the porch.  That is phenominal service.  I will definately shop with you again.  I have had free shipping take 10 days.  Proline Sports Nutrition is a site I will recommend to my many running/cycling buddies.  Thanks for the great response.  BTW, that info on the Hammer Nutrition products was wonderful!!  It helped me hone in on my nutrition/hydration plan for my marathon.  I printed off the entire 120 pages!  This is my 4th marathon.  I've trained hard, and my Hammer plan I do believe will give me a PR.

BCAA (Branched Chain Amino Acids)

These include the essential amino acids leucine, isoleucine, and valine.  They are very popular among athletes and there is some research validating their use.  Numerous research studies have shown these 3 key amino acids are extremely important to consume, especially when you are dieting and exercising (and according to one study, BCAA's are even more important when exercising in the heat). During exercise, your body uses a mix of glucose, fats, and even protein as a fuel source. When you diet and your carbohydrate intake is lower than normal, the percentage of protein your body uses for fuel (specifically Leucine, Isoleucine, and Valine) dramatically increases. The body will pull those needed amino acids from the continuously circulating pool of amino acids in your bloodstream.  And if not replenished from an outside source, i.e. specific amino acid ingestion in the form of BCAA's, your body will again, breakdown other areas of your body in order to supply this pool. Studies have shown that subjects who consume an effective dose of BCAA's while dieting have greater levels of lean muscle mass retention than controls that ingest a placebo (and typically LOSE muscle during the same dieting period). 

Results from one study concluded that the subjects consuming the high protein diet including branch chain amino acid supplements lost the greatest amount of bodyfat. Even more compelling is that the group supplementing with branch chain amino acids lost the greatest amount of fat from the abdominal and thigh regions, two areas of concern for many men and women in regards to fat loss.   It is important to take gram doses of each of the BCAA's before, during, and after exercise to maximize a workout program.

Resources for Today's Endurance Athletes

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Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on this website. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this Website is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. ProLine Sports Nutrition, Inc. ®