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.
Heme iron is easier for the body to absorb and is found in foods such as meat, fish and poultry. Non-heme iron is a form of iron that is less absorbable by the body. Non-heme iron is found in plant-based foods such as spinach, beans, molasses, quinoa, tempeh, and Equal Exchange chocolate bars.