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FoundMyFitness

Rhonda Patrick, Ph.D.

#112 How To Slow Biological Aging With a Multivitamin, Vegetables, & Omega-3 | Dr. Steve Horvath

Jun 7, 20262h 47m
Summary

In this episode, host Dr. Rhonda Patrick engages with Dr. Steve Horvath, a pioneer in longevity science and the developer of the Horvath epigenetic clock. The discussion centers on how biological aging—once a vague concept related to frailty or the passage of time—has been transformed into a quantifiable metric through DNA methylation. The conversation clarifies that biological age is not a single, monolithic number. Dr. Horvath explains that different epigenetic clocks serve distinct purposes; some are more sensitive to metabolic health and inflammation, while others are superior predictors of mortality risk. They discuss the nuances of key clocks like GrimAge and DunedinPACE, noting that while these tools are powerful for understanding how lifestyle interventions—such as exercise, diet, and sleep—impact the aging process, they are not absolute crystal balls or death-date calculators. The episode also tackles provocative questions regarding whether caloric restriction, specific supplements like Omega-3s, or pharmaceutical interventions can truly reverse epigenetic aging. Dr. Horvath emphasizes the importance of scientific precision, warning that while a clock might move in a favorable direction, it does not necessarily equate to total systemic rejuvenation. The episode provides a comprehensive look at what is currently measurable, modifiable, and understood in the quest to slow biological aging.

Updated Jun 25, 2026

About This Episode

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The strongest anti-aging strategy may be less about dramatic reversal and more about removing what accelerates aging in the first place. In this episode, Dr. Steve Horvath maps out the science behind biological age and how aging clocks are changing the way researchers evaluate longevity interventions. He also explains why omega-3s, a daily multivitamin, and sufficient vegetable intake stand out as evidence-backed, compounding levers for shifting biological age over time.

Timestamps:

  • (00:00) Introduction
  • (07:05) What exactly is biological aging?
  • (12:39) Do all aging clocks measure the same thing?
  • (18:22) PhenoAge vs. GrimAge—how methylation reveals mortality risk
  • (20:27) Why GrimAge is a powerful mortality predictor
  • (24:10) How your epigenome remembers long-term stress
  • (28:08) Can parents pass stress to offspring through the epigenome?
  • (30:12) Why standard aging clocks fail in sperm
  • (31:35) Can lifestyle changes reverse GrimAge?
  • (33:24) How DunedinPACE tracks your aging speed
  • (37:26) Which clock is best for testing longevity interventions?
  • (39:47) Can methylation clocks replace long-term mortality studies?
  • (43:33) Which interventions most reliably reverse epigenetic age?
  • (46:31) Can someone reverse biological age by 5 years in 7 months?
  • (50:49) Can GrimAge predict when you'll die?
  • (52:36) Why a younger GrimAge doesn't mean more years of life
  • (57:21) What epigenetic clocks fail to capture
  • (1:03:26) Why aging clocks measure more than just inflammation
  • (1:06:02) Does younger blood rejuvenate the whole body?
  • (1:09:52) Can calorie restriction really slow biological aging?
  • (1:14:00) Do GLP-1 drugs reverse epigenetic age?
  • (1:17:29) Can a daily multivitamin slow epigenetic aging?
  • (1:26:11) Omega-3, vitamin D, and exercise—which slows aging best?
  • (1:34:01) Does correcting vitamin D deficiency reverse age acceleration?
  • (1:36:29) Vegetables vs. exercise—which matters more for epigenetic age?
  • (1:42:04) Does red meat accelerate epigenetic aging?
  • (1:43:44) How much exercise is needed to slow epigenetic aging?
  • (1:51:05) Can heat exposure mimic exercise?
  • (1:52:29) Does a lower core body temperature slow aging?
  • (1:54:54) How sleep disruption shows up on aging clocks
  • (1:56:25) The role of social connection in biological aging
  • (2:02:55) Are consumer biological age tests worth it?
  • (2:07:52) How to choose a reliable biological age test
  • (2:12:38) Why two epigenetic age tests might give different results
  • (2:17:27) Can AI build better aging clocks?
  • (2:18:58) Partial reprogramming—can cells become younger without losing identity?
  • (2:22:52) What partial reprogramming can (and can't) reverse
  • (2:27:43) Do DNA mutations actually drive aging?
  • (2:29:59) Why no single intervention can stop aging
  • (2:34:29) Why genetics aren't your destiny
  • (2:38:38) Steve Horvath's longevity routine
  • (2:43:11) Does short-term stress accelerate epigenetic aging?

Show notes are available by clicking here

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