10/22/2012 10:17 am ET Updated Dec 06, 2017

Tim Gunn's Slimming Advice (WATCH)

We've all heard that black is the most slimming color to wear, but when Tim Gunn, fashion expert and host of the TV series "Project Runway", joined me on Mondays with Marlo I just had to ask him if had any other advice on dressing to look slimmer. As Tim pointed out, dark colors are naturally more slimming, but only if the clothes fit you! Tim's rule is, the more volume your clothes have, the more volume you appear to have.

For more style advice and fashion tips from Tim, check out this slideshow:

Tim Gunn's Essential Fashion Tips

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