This is how you can keep vegetables from losing nutrients

Less water used in cooking means less nutrients lost!

Have you ever noticed the green water when boiling broccoli? That's because water soluble vitamins leach into cooking water, so vegetables lose greater quantities of nutrients. Some minerals are lost in water, but they survive better than vitamins. Steaming instead of boiling is one of the best methods to preserve easily damaged nutrients. Since vegetables don't come in contact with cooking water during steaming, more vitamins are retained!