I can't speak for Reductil however my recommendation for regulating blood sugars (an imbalance of which can cause sugar and carb cravings) is to take a supplement of chromium GTF or Licorice Root, together with multi vitamin and B Complex.  Also check out whether you have food sensitivities.  I recommend you visit a Kinesiologist who can help you with all of this.  If you are in the UK visit www.systematic-kinesiology.co.uk