Low FODMAP Homemade Garlic Infused Oil is the way to go, if you want to pack some garlic flavor into your food without suffering the consequences. Garlic infused oil is acceptable because the fructans (the culprit) in the garlic is soluble in water but not oil.
You can make your own using these simple instructions. But remember that bacteria can form in homemade version and make you very sick (botulism). Be sure to refrigerate the unused portion and toss out after a week.
Store bought versions have been preserved appropriately and can last up to a year, and do not need to be refrigerated. If you want to buy one already infused like I usually do, please make sure it is truly garlic infused and not flavored with garlic powder! I went through several bottles labeled “garlic infused,” until I discovered that they had “garlic flavoring” as one of the ingredients or had tiny chopped garlic pieces and powder in them. My favorite one is the Baja Precious – Glorious Garlic Infused Extra Virgin Olive Oil (750ml Bottle).