* 60 participants will consume experimental product every day 3 sticks of the dietary supplement (1.4 grams/stick) during 12 months: 2 sticks should be consumed before lunch and 1 stick before dinner. During the 12 first weeks, each volunteer will be included on a low weight program (PPP) with an individual hypocaloric diet planning and regular physical adapted activity (PPP period). When PPP period is over, volunteers will continue consuming the product for 9 months more (Post-PPP period).
* 60 participants will consume everyday 3 placebo sticks (1.4 grams/stick) during 12 months: 2 sticks should be consumed before lunch and 1 stick before dinner. During the first 12 weeks, each volunteer will be included on a low weight program (PPP) with an individual hypocaloric diet planning and regular physical adapted activity (PPP period ). When PPP period is over, volunteers will continue consuming the product for 9 months more.
