Heel Pain That Won't Quit: Plantar Fasciitis After Menopause and the Fascia-Collagen Connection
That sharp stab under the heel with the first few steps out of bed has a name. It's plantar fasciitis, and it becomes noticeably more common in women around menopause. The usual explanation stops at "wear and tear." A 2019 human cell study points somewhere more specific: fascia itself, the connective tissue band under the foot, changes what it's made of in direct response to falling estrogen, and that shift lines up with the same collagen-building machinery that shilajit's own human research has been shown to switch back on.
What is plantar fasciitis, and why does menopause raise the risk?
The plantar fascia is a thick band of connective tissue that runs along the bottom of the foot, from the heel to the base of the toes. It acts like a bowstring, storing and releasing energy with every step. When it's overloaded, irritated, or its own structure degrades, the result is plantar fasciitis, felt as a sharp or aching pain concentrated at the heel, usually worst with the first steps of the day.
It is one of the most common causes of heel pain in adults, and clinical observation has long noted it shows up more in women in their 40s, 50s, and 60s than in younger adults. That timing lines up with the menopause transition, but "more common around midlife" and "caused by menopause" are not the same claim, and this article treats them as separate.
It's a fascia problem, not just a bone problem
A heel spur, a small bony growth sometimes visible on an X-ray, gets blamed for the pain more often than the evidence supports. Plenty of people carry a heel spur with zero pain, and plenty of people with textbook plantar fasciitis have no spur at all. The pain originates in the fascia band itself, in tissue that is overloaded or has broken down at the microscopic level, which is why the tissue science, not the bone, is where a real explanation has to start.
Fascia is built largely from collagen, primarily type I with some type III, plus a stretchier protein called fibrillin. Change the mix of those building blocks and you change how the tissue handles daily load. That's the thread the 2019 study picked up.
What did the fascia and estrogen study actually find?
A 2019 study published in PLOS ONE took human fascia cells, grown from fascia lata tissue, and exposed separate batches to estradiol at four different concentrations, matched to the follicular phase, the periovulatory peak, the luteal phase, and a low, postmenopausal-range level.
The cells responded differently at each dose. As estrogen exposure dropped toward the postmenopausal-range level, the cells produced less type I collagen and more type III collagen and fibrillin, a measurable, dose-dependent shift rather than an on-off switch.
That matters because type I and type III collagen aren't interchangeable. Type I is thicker, stiffer, and built for load-bearing strength. Type III is thinner and more elastic. A tissue that shifts its ratio toward more type III and less type I is, in principle, a tissue that handles repeated mechanical load differently than it did before.
What this does and doesn't prove
A few boundaries need to stay explicit here. Nothing here should be overstated:
- The study used human cells, which is meaningfully stronger evidence than an animal model, but the cells came from fascia lata, a sheet of connective tissue on the outer thigh, not the plantar fascia in the foot.
- Fascia is fascia in its basic biology, but the researchers did not test foot tissue directly, and no study has.
- The finding describes what fascia cells produce in a dish. It does not describe what happens in a living person's foot under real mechanical load, and it did not measure pain.
- No clinical trial has taken postmenopausal women with plantar fasciitis and shown their fascia carries this exact collagen shift.
- A separate, related line of evidence, a 2009 study of postmenopausal women, found those taking oral estrogen therapy had markedly higher resting tendon collagen synthesis than women who weren't, in tendon tissue rather than fascia. It reinforces the general pattern without closing the loop on the foot specifically.
The honest read is that the biology is plausible and internally consistent, not that the case is proven end to end.
What does shilajit's own collagen research show?
No study has ever tested shilajit, or any Optimum product, on plantar fasciitis, heel pain, or fascia tissue of any kind. That has to be said plainly before anything else here.
What does exist is a 2016 human muscle biopsy trial. Sixteen adults, ten women and six men, mean age 35.7, took 500 mg of shilajit daily for eight weeks. Researchers biopsied the vastus lateralis muscle before and after and measured gene activity in the tissue.
The genes for type I collagen, type I collagen's partner chain, and type III collagen were all significantly more active after eight weeks, with the lead gene roughly 86 times more active than at baseline. That's the same family of collagen genes, type I and type III, that the fascia study found responding to estrogen level.
It is a real, human, statistically significant finding, and it is muscle tissue, not fascia, in a mixed-sex group that wasn't selected for menopausal status. Connecting it to a foot condition is an inference about a shared collagen-signaling pathway, not a demonstrated result in that tissue. Shilajit's fulvic acid is understood to support the body's own estrogen signaling, which is the biological link to the fascia study above, but that link has not been tested directly in either direction.
What actually helps plantar fasciitis?
Some of this is well proven. A few approaches stand well ahead of the rest in the physical therapy literature:
- Calf and plantar fascia stretching, done consistently, is one of the best-studied and most effective first-line approaches.
- Supportive, cushioned footwear, and avoiding walking barefoot on hard surfaces, reduces the load the fascia has to absorb.
- Night splints that hold the foot in a stretched position can ease the classic first-step-in-the-morning pain.
- Rest from high-impact activity during a flare, paired with low-impact alternatives, gives the tissue room to settle.
- A physical therapist can build a graduated loading program once acute pain has eased, which most current guidance favors over rest alone.
- Weight-bearing activity in general, and its effect on foot mechanics, is worth discussing with a physical therapist or podiatrist if pain persists beyond a few weeks.
| Approach | What it targets | Evidence behind it |
|---|---|---|
| Stretching and night splints | Mechanical strain on the fascia | Strong, decades of clinical study |
| Supportive footwear | Daily load on the fascia | Strong, standard first-line care |
| Shilajit's fulvic acid and minerals | Collagen gene activity, estrogen signaling, systemic tissue support | Mechanism research only, no foot-specific trial |
The two rows aren't competing claims. One row is proven, direct, foot-specific treatment. The other is upstream tissue biology, and it's worth understanding honestly, but it is not a substitute.
Common questions about plantar fasciitis and menopause
Why does plantar fasciitis get more common around menopause?
Plantar fasciitis is a problem in the fascia, a band of connective tissue under the foot built largely from collagen. A human cell study found that fascia tissue changes what collagen types it produces in direct response to estrogen level, with less collagen-I and more collagen-III and fibrillin at low, postmenopausal-range estrogen. That shift is a plausible reason fascia problems climb around midlife, though no study has followed real patients to prove the cell-level finding causes the clinical pain.
Is plantar fasciitis the same as a heel spur?
No. A heel spur is a bone growth that sometimes appears on X-rays near the heel, but many people have one with no pain at all, and many people with plantar fasciitis have no spur. The pain comes from the fascia band itself being irritated or degenerated, not from the bone growth.
What does the fascia study actually show?
Researchers took human fascia cells in a lab dish and exposed them to estrogen at levels matching four points across a woman's reproductive life, including a postmenopausal-range dose. The cells produced measurably different amounts of collagen-I, collagen-III, and fibrillin at each level. It is real, human, and dose-dependent, but it was cells in a dish, not a person's foot, and it did not test plantar fascia specifically or measure pain.
Does shilajit help plantar fasciitis?
No study has tested shilajit on plantar fasciitis, heel pain, or fascia of any kind. What exists is a separate human muscle biopsy trial showing shilajit's fulvic acid switched on the same family of collagen genes, in muscle tissue, and a tendon study showing postmenopausal women on estrogen therapy had higher connective-tissue collagen synthesis. Both are honestly discussed here as related mechanism research, not a treatment claim for this condition.
When is heel pain worth getting checked out?
Pain that comes on suddenly after an injury, is accompanied by significant swelling, redness, fever, or numbness, or does not ease at all with rest and gentle stretching over several weeks is different from the gradual, first-step morning pain described in this article and is worth a medical evaluation.
Optimum Shilajit
If you're curious about the collagen and mineral side of this picture, here is the trace mineral and fulvic acid profile behind the muscle-biopsy research discussed above, sourced from the Altai mountains and tested for heavy metals on every batch: Optimum Shilajit.
See Optimum Shilajit