Why should garlic be avoided?

Why Some People Choose to Limit Garlic in Their Diet

Garlic is celebrated for its bold flavor and long history in traditional medicine, but it’s not without its drawbacks. While it’s generally safe for most people when used appropriately—often for up to seven years—some individuals may experience unpleasant side effects, especially when consuming it raw.

Bad breath and body odor are among the most common complaints. But that’s not all: garlic can also trigger heartburn, gas, and diarrhea, particularly in sensitive individuals or when eaten in large amounts. Raw garlic tends to be more irritating to the digestive system than cooked, making these symptoms more intense for some.

Another concern lies in garlic’s natural ability to thin the blood. While this can be beneficial in certain contexts, it may increase the risk of bleeding, especially in people taking anticoagulant medications or preparing for surgery. For this reason, doctors often advise cutting back on garlic supplements well before a procedure.

Allergic reactions, though less common, are also possible. Symptoms can range from skin rashes and swelling to more severe responses in rare cases. People with known sensitivities to plants in the Allium family—like onions or chives—should be especially cautious.

Despite its reputation as a health booster, garlic isn’t a one-size-fits-all remedy. Moderation is key. For most, the occasional clove in cooking poses no issue, but those with digestive sensitivities, upcoming surgeries, or allergies may benefit from limiting their intake. As with any potent food, listening to your body’s signals matters most.