The flavour of garlic granules is vastly different from fresh chopped garlic. It tastes sweeter and much less assertive than fresh garlic, but also without the caramelly, nutty undertones that you get from roasted garlic.
You use Garlic granules in liquid dishes that undergo some cooking time, to soften the pieces and let them release the garlic flavour. 
Use in food:
Use 1/4 tsp garlic granules for each fresh garlic clove.
Sauce
Soup
Stew
Casseroles
Dry Rub
 
Natural benefits may include:
Garlic is a natural wide-spectrum antibiotic, antifungal and antiseptic
Great immune support to assist with flu, coughs and colds
Garlic can clear skin ailments like acne, athlete’s foot, nail fungus and ringworms
Treat high cholesterol, high blood pressure, heart disease and circulation
Garlic thins the blood and can even be used to treat haemorrhoids