Elena Park
Health & Wellness Editor
NAD+, Peptides, and Senolytics: What the Longevity Science Actually Supports
Cutting through the noise on anti-aging interventions — what has clinical evidence, what doesn't, and where telehealth comes in
I'd been reading about longevity science for a year and had no idea which direction to go. A telehealth consult with a longevity doctor gave me more clarity in 45 minutes than 50 hours of podcasts.
The longevity field moves fast and is filled with supplements, protocols, and unregulated claims. Adults 45–70 researching NAD+, senolytics, peptides, or biological age testing face a confusing landscape. Telehealth platforms staffed by longevity-focused physicians can cut through the noise with personalized lab-based guidance.
Cutting through the noise on anti-aging interventions — what has clinical evidence, what doesn't, and where telehealth comes in
What happened when people stopped waiting
3 commentsI was so skeptical after years of trying everything. But 3 months in and I've lost 22 lbs. Wish I'd found this a year ago.
342 people found this helpful
My doctor mentioned GLP-1 but the cost through insurance was prohibitive. Found a telehealth option under $200/month. Game-changer.
218 people found this helpful
Tried keto, intermittent fasting, all of it. The biological approach finally made things click. Down 18 lbs in 8 weeks.
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What We Found
I read 50 hours of longevity content and got less clarity than from one 45-minute telehealth consult.
How We Evaluated
Our Ranking Criteria
Level of human clinical evidence
Animal-only data is not sufficient for recommendation. Interventions require at minimum observational human data or small RCTs.
Requires physician oversight
Prescription-only interventions (peptides, hormones) are evaluated for their telehealth accessibility and whether physician oversight is actually provided.
Biomarker measurability
Effective longevity interventions should produce measurable changes in blood biomarkers, not just subjective reports.
How It Works
What is biological age and how is it different from chronological age?
Biological age estimates how well your body is aging relative to your years lived — measured via blood biomarkers or DNA methylation (epigenetic clocks). A 55-year-old with a biological age of 48 has measurably healthier cellular function than most 55-year-olds. These tests are useful as a baseline but require clinical interpretation.
Our Verdict
The longevity space is unusually difficult to navigate because the signal-to-noise ratio is terrible. Legitimate science — NAD+ research, senolytic compounds, GLP-1 effects on aging — sits next to thousands of unregulated supplement claims using the same vocabulary. A physician who specializes in longevity medicine is the most efficient way to separate the two.
The evidence hierarchy for longevity interventions runs roughly: (1) lifestyle — sleep, resistance training, zone-2 cardio, Mediterranean-pattern diet — has the most robust human data; (2) targeted supplementation based on lab-identified deficiencies (vitamin D, B12, magnesium, omega-3s) has good evidence; (3) prescription peptides and hormone optimization have meaningful evidence for specific indications; (4) cutting-edge interventions (senolytics, rapamycin) have promising early data but remain experimental.
The right entry point for most people is a telehealth longevity consult plus a comprehensive blood panel. This rules out simple deficiencies, establishes a baseline, and lets a physician prioritize interventions based on your actual biology rather than the generic protocol a podcast is selling.
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Frequently Asked Questions
Is NAD+ supplementation supported by evidence?
Preclinical evidence is strong. Human trials are promising but limited in scale and duration. NAD+ levels decline ~50% between ages 40 and 60 (Nature Metabolism, 2023), and supplementation with NMN or NR reliably raises levels. Whether raising NAD+ translates to meaningful longevity outcomes in humans is still being studied.
Do I need a prescription for longevity treatments?
Lifestyle interventions, over-the-counter supplements (NMN, NR, creatine, omega-3s), and basic lab testing don't require a prescription. Peptides like sermorelin or NAD+ infusions, hormone optimization, and senolytics typically require physician oversight. Telehealth platforms can assess and prescribe where appropriate.
How soon can I expect results from a longevity protocol?
Energy and sleep improvements are often reported within 4–8 weeks of addressing deficiencies. Biomarker changes typically become measurable at 3–6 months. Biological age improvement — the target outcome — is typically assessed annually. There are no shortcuts; sustained lifestyle change and targeted interventions work together.
Every week without addressing this, the gap widens.
Telo X Nano — World's first DNA-based multivitamin using nano-delivery technology
Nano-delivery technology · Anti-aging science
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