I love edamame and often use it to make hummus.
Just now after commenting on a related topic on facebook I was presented with information about the dangers of women consuming high levels of soy-based products.
Just a quick google search uncovered several pages of independent research on the topic and the health risks involved with a soy-centric diet.
If you consume lots of soy or give your infant soy-based formula then I implore you to read for yourself.
Dangers of soy