I see. Didn't expect you to give out the name. I've got quite a bit of experience in the field and there are already tons of authoritative platforms available to users seeking information on various nutrition, fitness, strength, etc programs. If they keyword you are referring to has to do with the theoretical aspect of fitness (ie. nutrition, strength, etc), then I wouldn't bother trying to compete with the likes of Bodybuilding.com and many other well-developed sites. If it's a certain supplement you're referring to, you may be able to develop some kind of informative/e-commerce type site but that's thoroughly covered on bodybuilding.com as well.
Just my insight though; if you feel the keyword has potential, register it and do as you wish. Best of luck!


