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.
Just as there are foods that are rich in iron or help iron absorb into your system, there are foods that do the exact opposite. These foods actually slow the absorption rate of iron into the system and they should be avoided if you are anemic and in need of as much iron in your diet as possible: Soy. Whole grains.