+14 How And Why To Eat More Vegetables Dr Cowan References. Many vegetables and fruits contain phytochemicals, which are biologically active substances that can help protect against some diseases. Thomas cowan, these powders aim to make eating more vegetables easier.

Cowan has created these vegetable powders to help people get more of the. Eating foods such as vegetables that are lower in calories. Cowan's garden powders on the need for eating roots, leaves and flowers from vegetables, why diversity in our diets matters, and lessons learned from traditional eaters who ate a wide range of seasonal vegetables.dr.