03/19/2012 03:46 pm ET Updated Dec 06, 2017

Blood Sugar Solution Challenge, Day 21: Rough it Up for Weight Loss

The Japanese have been eating a powerful weight loss food for centuries. So did our ancient ancestors who got ten times more of this critical substance than modern Americans. Watch this video to find out what it is and how to add it to your diet.

For more on the Blood Sugar Solution Challenge, see the full archive here.