I am becoming a Nutrition Coach through Precision Nutrition.
Here are 5 videos and several helpful forms that will help you and your client to achieve success.
http://www.precisionnutrition.com/nutrition-coaching-day-1
http://www.precisionnutrition.com/nutrition-coaching-day-2
http://www.precisionnutrition.com/nutrition-coaching-day-3
http://www.precisionnutrition.com/nutrition-coaching-day-4
http://www.precisionnutrition.com/nutrition-coaching-day-5