A long time ago (about 1996) i used to use 'Ultimate Orange' from the States. 3/4 of a teaspoon in a pint of water and 20 minutes later all hell broke loose - i could train easily for at least twice as long and twice as hard. Turned out it had the drug speed in it and it was banned until obvious changes were made.
Its still available but not good anymore. HG in another post noted a good fat-burner - does anyone know of supplements which really do the job?
Lets all find out if there is anything that really works - I've not come across anything fantastic since 1996.