They're not just for key-lime pie They can be used in tea or made into gluco shield pro blaster limeade or even added to smoothies for a flavorful treat. Vitamin C may also be effective at diminishing the damage to proteins caused by free radical, dangerous molecules that damage tissues in the body. It is all about keeping your gluco shield pro at an even keel, instead of spiking up and down like a roller coaster. In one study, volunteers who ate cinnamon for 40 days had 18 per cent reduction in cholesterol and 24 per cent reduction in their gluco shield pro levels.