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napsgear
genezapharmateuticals
domestic-supply
puritysourcelabs
RESEARCHSARMSUGFREAKeudomestic
napsgeargenezapharmateuticals domestic-supplypuritysourcelabsRESEARCHSARMSUGFREAKeudomestic

What legal suppliments can I take to increase my running endurance?

Caffine is a banned stimulant in the I.O.C.

For caffine the definition of a positive is a concentration in urine greater than 12 micrograms per millilitre.
Ephedrine is 10 micrograms /ml
Go to www.usantidoping.org for list of banned substances.

I'am not sure how many cups of coffee this would be.
Call U.S.antidoping toll free 1-800-233-0393 and they will be able to tell you.
They will answer any questions and concerns you may have.
 
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