Lentils

Iron for Energy

In addition to providing slow burning complex carbohydrates, lentils can increase your energy by replenishing your iron stores. Particularly for menstruating women, who are more at risk for iron deficiency, boosting iron stores with lentils is a good idea—especially because, unlike red meat, another source of iron, lentils are not rich in fat and calories. Iron is an integral component of hemoglobin, which transports oxygen from the lungs to all body cells, and is also part of key enzyme systems for energy production and metabolism. And remember: If you're pregnant or lactating, your needs for iron increase. Growing children and adolescents also have increased needs for iron.

http://www.whfoods.com/genpage.php?tname=foodspice&dbid=52

This website is great for lots of information on lentals.