Ruth ClarkRuth Clark, RD, MPH is a board certified Registered Dietitian and functional nutritionist with a master's degree in Public Health and more than 35 years of experience in the nutrition field. She specializes in helping mid-life and older women who arestruggling with weight, fatigue, chronic pain, and mood issues to create more vitality in their lives. Ruth is also the founder of the successful Rejuvenation Jump Start program. Read More Read Less