Tustin Holistic Health is committed to helping our patients achieve total body wellness. Dr. John Ennen is a lifetime resident of Orange County. He received his doctorate from Cleveland College of Chiropractic, one of the most highly regarded chiropractic colleges in the country. After graduating with honors, Dr. Ennen completed extensive studies in clinical nutrition, nutritional analysis (studying blood, urine and saliva), sports nutrition and sports injuries, extremity adjusting,applied kinesiology, functional neurology, functional biochemistry and functional endocrinology.