While not a good tool for diagnosing asthma, peak flow, and peak flow meters are good to monitor asthma over time. You may see declines in your peak flow prior to developing significant symptoms. This will allow you to alter your treatment regimen based on your asthma care plan.
Increase your intake of calcium, which inhibits the absorption of iron in the body. Eat more milk products, green leafy vegetables, oats and cereals (check to see that these are not fortified with iron). Milk products, such as ice cream, cheese, yogurt, are rich in calcium.
Fermented Foods. While fermented foods may not be a regular part of your diet, they can help increase your iron absorption. These foods include some types of soy sauce, sauerkraut, miso, kimchi and pickled vegetables like beets, cucumbers, capers, olives, artichokes, mushrooms and radishes.