Summer Sips & Snacks: Foods That Cool and Foods That Heat

3. Garlic

Garlic adds instant depth to any dish, but it also subtly raises your body temperature. It stimulates circulation and increases metabolic heat—one reason it’s used in traditional remedies for colds and sluggish digestion. Raw garlic has an especially strong warming effect, so if you're eating it in dressings, sauces, or dips, expect to feel the internal warmth. While it has heart-healthy benefits and immune support perks, it’s best balanced with cooling ingredients during summer months. Think garlic yogurt sauces or aiolis with cucumber for a more seasonal spin.

4. Onions

Onions are a kitchen staple, but their heating nature often goes unnoticed. Cooked onions, in particular, can increase internal heat, especially when sautéed in oil or added to rich, heavy meals. Even raw onions—often thought of as cooling—can contribute to warmth depending on the variety and quantity. They also contain sulfur compounds that stimulate digestion and circulation. In many traditional diets, onions are considered warming foods that stoke internal “fire.” If you’re feeling the heat already, scale back or pair onions with lighter, hydrating veggies to balance things out.