How to Eat Raw Garlic. Three Methods: Raw garlic on toast Garlic dip Guacamole with garlic. Eating raw garlic is a good way of building up your immune system. Here are a few ways you can go about eating raw garlic by adding it to food, so that you can stay healthy.ow to Eat Raw Garlic. Three Methods: Raw garlic on toast Garlic dip Guacamole with garlic. Eating raw garlic is a good way of building up your immune system. Here are a few ways you can go about eating raw garlic by adding it to food, so that you can stay healthy.