Asthma Treatment Using Home Remedies, Yoga, And Diet – Foods to be taken Foods to be avoided: Eat plenty of fruits and vegetables. Eat foods with omega-3 fatty acids which are found in fish like salmon, tuna, and sardines and some plant sources, like flaxseed are believed to have a number of health benefits. Some of the best foods recommended for people with asthma include: avocado, carrots, green leafy veggies like spinach, kale, broccoli sprouts, sweet potatoes, ginger, turmeric, garlic, onions, apples, grapes, nuts, tomatoes,