It's not what you can give him, but what you can stop giving him, i.e. meat, dairy, refined grains, processed foods, etc. He needs a dietary change, especially more fruits and vegetables in his diet. More salads! More water! Start him off on the Children Detox (liquid extracts) which will greatly help him! Please read "Why Parents Should Keep Children Meat and Dairy Free", "Bad Breath". Also please check some of our articles on Bad Breath.