To avoid aluminum from aluminum foil leaching into your food, use the foil sparingly and avoid wrapping food directly in it. Opt for heavy-duty aluminum foil, which is less likely to tear and expose food to aluminum. When cooking acidic or salty foods, consider using parchment paper or silicone baking mats as alternatives. Additionally, avoid using aluminum foil at high temperatures, as this can increase the risk of aluminum transfer. Finally, store food in glass or stainless steel containers instead of aluminum foil to minimize exposure.