What changed vs the May 28 report
read this first
- Mary Claire Haver was omitted entirelyShe is the niche's #1 creator by a wide margin (654K subs, 88.5M views). That omission was the analysis's worst error. She is now Tier 1, at the top.
- The Tamsen Fadal handle was a trapThe bare @TamsenFadal resolves to a 54-subscriber namesake (an old relationship/lifestyle channel). The real creator is @TamsenFadalTV (281K). The prior stats were roughly right, but anyone re-checking by the obvious handle lands on the wrong account.
- Heather Hirsch was mis-tieredAt 84.5K subs / 7M views, Harvard/Brigham menopause faculty, she leads the lab-literacy and clinical how-to lane. She belongs in Tier 1, not "undervalued."
- Gabrielle Lyon was missing from Tier 1277K subs, owns muscle and protein for midlife. Added.
- Stat correctionsVonda Wright is 113K (not 106K), Louise Newson is 41.7K (not 30.8K), and the prior page swapped Casperson's and Newson's subscriber counts.
- The Longevity Shift is REALIts stats held up (6.22K subs / 4.48M views / 1,722 videos, hosted by OB-GYN Dr. Kaushiki Dwivedee). This was the one "suspected fabrication" that turned out true. The undervalued-analog thesis stands.
- Two of the five "gaps SSA can own" were downgraded to contestedLab literacy and WHI correction. See the gaps section.
Tier 1: Direct Competitors
verified live, 5 channels
Dr. Mary Claire Haver
654K subs | 88.5M views | @drmaryclaire
Norwitz: The bar
Board-certified OB-GYN, #1 NYT bestseller. Highest credibility and reach.
Dr. Gabrielle Lyon
277K subs | 27.0M views | @DrGabrielleLyon
Norwitz: High
"Muscle-centric medicine." Owns muscle and protein for midlife.
Dr. Stacy Sims
334K subs | 25.8M views | @DrStacySims
Norwitz: High
Exercise physiology, "women are not small men." Strong science.
Tamsen Fadal
281K subs | 52.1M views | @TamsenFadalTV
Norwitz: Medium
Journalist, interview-driven, NYT bestseller. Huge distribution, lower clinical authority.
Heather Hirsch MD
84.5K subs | 7.0M views | @heatherhirschMD
Norwitz: High
Harvard/Brigham menopause faculty. Leads lab literacy + clinical how-to. High views-per-sub.
Tier 2 + Adjacent + Undervalued
watch these closely
fabulous50s
2.27M subs | 262M views
Audience-adjacent giant
The category-adjacent attention giant, but it is workout content, not menopause science. Different lane.
Dr. Vonda Wright
113K subs | ortho/active-aging
Credible mid-tier clinician
Ortho and active-aging framing.
Menopause Taylor
130K subs | structured tutorials
Credible mid-tier clinician
Structured tutorials.
The Longevity Shift (Dr. Kaushiki Dwivedee)Undervalued
6.22K subs | 4.48M views | @longevity_shift
The undervalued analog
~720 views per subscriber: a search-discovered, evergreen, study-cited, no-hedging midlife-women channel. Closest positioning match to SSA. Study the high-cadence citation discipline.
Greysteel (Dr. Jonathon Sullivan)
62.1K subs | 4.49M views | @GreySteel
Norwitz: High
Evidence-based strength after 50. Skews older and general, not women-specific, but the gold standard for mechanism-depth on training.
Dr. Kelly Casperson
42.7K subs | 2.8M views | @kellycaspersonmd
Norwitz: High
Sexual health, libido, GSM, hormones. Real surgical authority. A complementary lane, not a rival.
Dr. Louise Newson
41.7K subs | 2.2M views | @menopause_doctor
Norwitz: High
UK hormone specialist, Sunday Times bestseller. Big UK brand, smaller YouTube footprint, UK-care framing.
Karen Martel (Hormone Solution)
8.68K subs | 477K views | @karenmartelhormones
Norwitz: Medium
Functional/bioidentical framing, not MD. Differentiate from this on evidence rigor.
What the top channels do to grow
real outlier data
- Borrowed-audience guest spots are the dominant growth leverHaver on Diary of a CEO = 6.09M; Lyon on Huberman = 2.54M; Lyon's TEDx = 1.92M. These dwarf own-channel uploads (Haver's own episodes run ~13K to 90K). The biggest move in this niche is getting on bigger shows.
- "The [Profession] Doctor:" interview titles overperformFor Tamsen Fadal: "The Foot Doctor: What Your Feet Reveal About How Long You'll Live" = 429K (~15x her baseline); "The Heart Doctor," "The Hormone Doctor," etc.
- Belly fat / fat loss is the single most consistent hookAcross Haver ("My Advice to Get Rid of Belly Fat" = 714K), fabulous50s, and Lyon.
- Numbered, duration-led, ALL-CAPS-benefit titles own the workout-adjacent lane"30 Minute LOSE WEIGHT Indoor Walking Workout" = 3.4M.
5 Content Gaps, reconciled
with today's live whitespace
- 1. Testosterone, dopamine, and anhedonia for women, OPEN: OWN ITNo major channel covers this mechanism for women. SSA's strongest true whitespace.
- 2. APOE4-specific HRT / Alzheimer's prevention, OPEN: OWN ITMosconi-adjacent but unowned on YouTube. Annette's APOE4/4 status plus her mother's story is first-person authority nobody else has.
- 3. Genomics / DNA literacy for midlife women, partially contested: hold looselyDifferentiate on the specific DNA/whole-genome angle, which no competitor owns on YouTube.
- 4. Lab-testing literacy, CONTESTED: downgradedHeather Hirsch (Harvard/Brigham) actively leads this. SSA can compete, but cannot claim it as open whitespace.
- 5. WHI correction, CONTESTED: downgradedHaver, Newson, and Hirsch have all done the WHI debunk. Only a fresh reassurance/emotional framing (for the still-scared woman) has room left.
- Saturated lanes, do NOT claim as SSA whitespaceVaginal estrogen, creatine for women 50+, GLP-1 plus muscle loss, and hair loss are all saturated per today's run (GLP-1 shows up in Haver's recent titles; muscle is Lyon's).
Channel Quick Reference
corrected roster
| Channel | Subscribers | Tier / role |
|---|---|---|
| Dr. Mary Claire Haver | 654K | Tier 1, the bar |
| Dr. Stacy Sims | 334K | Tier 1 |
| Tamsen Fadal | 281K | Tier 1 |
| Dr. Gabrielle Lyon | 277K | Tier 1 |
| Dr. Vonda Wright | 113K | Adjacent, mid-tier clinician |
| Menopause Taylor | 130K | Adjacent, mid-tier clinician |
| Heather Hirsch MD | 84.5K | Tier 1 |
| Greysteel | 62.1K | Tier 2 benchmark |
| Dr. Kelly Casperson | 42.7K | Adjacent, complementary lane |
| Dr. Louise Newson | 41.7K | Tier 2 |
| The Longevity Shift | 6.22K | Undervalued analog |
| Karen Martel | 8.68K | Tier 2 |
| fabulous50s | 2.27M | Audience-adjacent giant (different lane) |
Strategic Recommendations
updated, 6 priorities
- 1Haver is the bar, not a blind spot. Study the #1 creator you were missing. Her belly-fat and skin/estrogen hooks are her highest own-channel performers.
- 2Lead with testosterone-anhedonia and APOE4. These are the only two clean, defensible gaps left, and SSA already has the content drafted.
- 3Guesting is the growth lever. Own-channel uploads top out near 90K for even the biggest clinicians; guest spots hit 1M to 6M. Pitch the big shows.
- 4Do not compete on workouts or muscle. fabulous50s (2.27M) owns workouts; Lyon owns muscle. SSA's edge is science plus narrative, not exercise instruction.
- 5The Longevity Shift is the model to study. ~6K subs, ~4.5M views: proof the algorithm rewards high-cadence, study-cited, no-hedging women's-science content regardless of subscriber count.
- 6Kelly Casperson is a collaborator, not a rival. She owns libido and sexual health; SSA owns testosterone for mood, ambition, and Alzheimer's prevention. Complementary lanes.