These figures are collected for readers who want a clear starting point, not a sales pitch. Each number is dated, linked to its original source and described as narrowly as the source allows.
Six figures to know
U.S. adults used energy healing
The 2007 National Health Interview Survey estimated that more than 1.2 million U.S. adults had used an energy-healing therapy, such as Reiki, in the previous year. Read the source: National Center for Complementary and Integrative Health, 2011
estimated practitioner visits
For the energy-healing category, the 2007 survey estimated 7.203 million practitioner visits during the year. Read the source: CDC National Center for Health Statistics, 2009
estimated out-of-pocket spending
The same report estimated $421.602 million in annual out-of-pocket spending for energy-healing practitioners. The report marks this estimate as limited in precision. Read the source: CDC National Center for Health Statistics, 2009
randomized trials in a 2008 review
A systematic review that searched 23 databases identified 205 potentially relevant studies. Nine randomized clinical trials met its inclusion criteria. Read the source: Lee, Pittler and Ernst, International Journal of Clinical Practice, 2008
participants in a 2025 meta-analysis
A later meta-analysis of randomized trials examining quality of life reported a combined sample of 661 participants, with its literature search ending in September 2024. Read the source: Systematic Reviews, 2025
How this page was compiled
This page uses only public, named sources. The U.S. use and spending figures come from the 2007 National Health Interview Survey and describe the wider energy-healing category, which includes Reiki. Research figures describe the individual reviews named below. They should not be read as proof of effectiveness, and they are not estimates of how many people practice Reiki today.
- National health survey data
National Center for Complementary and Integrative Health, Reiki: An Introduction, 2011. This source reports the 2007 survey’s 1.2 million and 0.5% figures.
- Visits and spending
CDC National Center for Health Statistics, Costs of Complementary and Alternative Medicine, 2009. Table 1 reports energy-healing visits and spending from the 2007 survey.
- Published research reviews
Lee, Pittler and Ernst, 2008, and Effects of Reiki therapy on quality of life, 2025. The latter searched literature through September 2024.
Cite this page
The Halls of Reiki. “Reiki Statistics: U.S. Use and Published Research.” Updated September 28, 2026. https://hallsofreiki.com/reiki-statistics
Continue your study
Explore Reiki as a subject of study.
The Reiki Library offers history, principles and practical reference material, while the course catalogue supports self-paced correspondence learning.
Explore the Reiki Library →