Okay, girls. Before you head off to some Halloween party tonight dressed as Sexy Anna Rexia, ready to ironically scarf down mini Snickers bars and drown your body-image sorrows in pints of non-lite beer, take heed of this celebrity public service announcement. Jessica Alba, who is regularly touted by lad mags as having the best bod in Hollywood, has been hard at work at the gym, and she still thinks she could stand to lose a few pounds.

The tawny-skinned starlet was spotted emerging from a workout cradling a copy of that diet book Skinny Bitch, the tome which caused a minor sensation when Posh Spice was seen pawing it at Kitson with her skeletal hands.

So while you're carelessly indulging your juvenile candy corn fetish, think of poor little Jessica, who'll instead be rocking back and forth in a corner repeating to herself mantras like "Beer is for frat boys, not skinny bitches" and "Soda is liquid Satan."