Proto-col carb-blocker plus with phase 2® is a perfect solution for carb-lovers and is rumoured to be favoured by trim carb-loving A-listers. Phase 2® – a protein extracted from white kidney beans – blocks the enzyme responsible for the digestion of carbohydrates, and clinical trials have proven up to 75% reduction in starch absorption. This prevents starch being changed into glucose (sugar) and is an effective way to aid weight loss. proto-col carb-blocker plus with phase 2® can be used permanently and is even suitable for diabetics. Proto-col natural slimming supplements, unlike most others on the market, are ephedrine-free to ensure safe weight loss. Ephedrine is a stimulant banned in sport because it can become addictive.