[marcrosoft]

It probably depends but roughly <= 10%

[jlawson]

No, <=10% is a shredded six-pack with thin skin, visible muscle striations, etc.

to see a decent sixpack in normal situations without intense flexing/lighting, a male typically needs to be at about 13-15% bodyfat.

[mmmpop]

Bleh, one bad flu and you might be dead tho... that's what I tell my fiancée anyway.