No — dangerous
No. Garlic is 3–5× more concentrated than onion in the compounds that destroy dogs’ red blood cells. Despite internet myths about “small doses being healthy”, vets advise against any.
Garlic belongs to the same allium family as onions and works the same way — oxidative damage to red blood cells leading to haemolytic anaemia — but gram for gram it’s several times more potent. You may read that tiny amounts of garlic are a “natural flea remedy”; there is no good evidence for that benefit, and there IS good evidence of cumulative toxicity. Garlic bread, garlic butter, and dishes sautéed in garlic are the typical accidental sources.
None deliberately. A lick of garlicky sauce is unlikely to harm a large dog, but repeated exposure or a real quantity (a few cloves for a small dog) warrants a vet call. As with onions, symptoms can lag days behind ingestion.
For dogs that love savoury flavours, plain cooked chicken or a smear of xylitol-free peanut butter is a safe thrill.
Related: Can dogs eat onions? · Can cats eat garlic? · Can dogs eat cheese?
This article is general information, not veterinary advice. If your pet has eaten something potentially harmful or shows symptoms, contact your vet or an emergency clinic immediately. Full disclaimer.