OptiHealth Institute

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  • Home
    • About Us >
      • How We Serve
    • Contact Us >
      • Disclaimer
  • Workshop
    • Preview
    • Part 1
    • Part 2
    • Part 3
    • Part 4
    • Part 5
    • Part 6
  • Library
    • Steps to Christ
    • Christian Service
    • Gospel Workers
    • Ministry of Healing
    • Counsels on Health
    • Temperance
    • Medical Ministry
    • Counsels on Diet and Foods
    • Christian Temperance and Bible Hygiene
    • Healthful Living
  • Courses
Jon Opsahl, MD, MPH, TLC, MFT
OptiHealth Institute Director
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​Jon is a "fourth-generation" Seventh-day Adventist -- by choice. He graduated from Sacramento Adventist Academy in 1978 and from La Sierra University in 1983 with a B.S. in Health Science. He then earned his M.D. and M.P.H. at Loma Linda University followed by a residency in Preventive Medicine and a fellowship in Addiction Medicine.

​In 2017, Jon completed a mini-fellowship in Lifestyle Medicine at the SDA Black Hills Lifestyle Medicine Center with an emphasis in Nutrition & Exercise using Biblical Response Therapy. "Helping people develop healthier lifestyles by faith to prevent or reverse chronic disease is the kind of health care people need and appreciate."

Jon also got certified as a Personal Trainer and earned the "Exercise is Medicine" credential through the American College of Sports Medicine. He then developed a medical-fitness testing protocol for integrating exercise into treatment programs for patients with chronic disease, which also works well for sedentary teens and adults with busy schedules.

In 2025, Jon developed certification courses for Medical-Fitness Technicians and Therapeutic Lifestyle Coaches for SDA Health Ministry Volunteers, including: high school and college students and adults young and old.

Jon believes filling the void between the fitness and medical industries will help solve our nation's health care crisis, but more importantly, he founded the OptiHealth Institute to help local SDA Churches revitalize their Health Ministry services for spreading the gospel more effectively.

Jon attended AFCOE (Amazing Facts Center Of Evangelism) in 2021 where he learned more fully the "science of salvation" and consecrated his life to the will of God. "My continuing studies have led me to fully confess the whole truth as it is in Christ."
  • John 8:31-32 -- Then said Jesus to those Jews which believed on him, If ye continue in my word, then are ye my disciples indeed; and ye shall know the truth, and the truth shall make you free.
  • John 15:5 (Christ) -- I am the vine, ye are the branches: He that abideth in me, and I in him, the same bringeth forth much fruit: for without me ye can do nothing.
  • Galatians 2:20 (Paul) -- I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.
  • Galatians 5:22-26 -- The fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith, meekness, temperance: against such there is no law. And they that are Christ's have crucified the flesh with the affections and lusts. If we live in the Spirit, let us also walk in the Spirit. Let us not be desirous of vain glory, provoking one another, envying one another.
Jon lives in Corona, California. He has 3 adult children and 3 grandchildren (so far). He loves to study Bible prophecy, is 95% vegetarian, and at 65 years old (by the grace of God) he can run a mile in less than 7 minutes.
You may contact Jon directly by text or email:
909-957-2730  /  ​
[email protected]

OptiHealth Institute

Learning How to Do God's Work God's Way