Actress Octavia Spencer has signed on as the new spokesperson for SENSA after losing 20 pounds (9 kilograms) on the weight-loss system. The Help star has often struggled to keep her figure red carpet-ready, but she recently began sprinkling the brand's flavour-enhancing crystals on her food, and now her body is reaping the benefits. She says, "I've tried nearly every diet out there, and none of them worked for me. If you tell me I can't eat something, I'll obsess over it and end up overeating. SENSA is the perfect tool for me... I just shake it on my food to help me eat less and lose weight, and, more importantly, I feel great and am a healthier me... "I know I'm never going to be one of those size two actresses - that's just not me. But I do want to be the healthiest I can be, and a role model to women of all shapes and sizes. SENSA has allowed me to take the first step toward a healthier life. It encourages me to lose weight at my own speed, in my own way. It's changed my life, not my lifestyle." The Oscar winner, who began using the product late last year (12), has also shot a series of ads for the firm, in which she shows off her new slimmed-down look.