Picture the version of yourself you want to be at 75. Still carrying your own suitcase through an airport. Hiking a slow trail without needing to sit halfway up. Getting out of a low chair without that small internal negotiation. These unglamorous moments are the real measure of aging well, and they rest on something most of us barely think about until it starts slipping: muscle.

A study published this year out of Nanjing has been circulating in the longevity corners of the internet, and it's worth a closer look — not because it offers some miracle food, but because it quietly reinforces something researchers have been saying for a while. What you eat in your 60s and 70s shapes whether your body remains a reliable partner or starts becoming a liability. And for readers of this site, where conversations often turn toward ayahuasca, psychedelics, addiction recovery, and the deeper work of becoming whole, physical resilience matters more than people like to admit. You can't do a week-long plant medicine retreat if your body can't handle the week.

What the Researchers Actually Looked At

The study followed 5,484 adults aged 60 and older in Nanjing, China. Researchers screened each participant for frailty — a clinical term for the state where your body becomes noticeably less resilient. Frail people tire faster, move slower, lose weight they didn't mean to lose, and take longer to recover from a cold or a fall. It's not the same as being old. Plenty of 80-year-olds aren't frail, and plenty of 65-year-olds unfortunately are.

Alongside the frailty assessment, participants filled out a food questionnaire covering how often they ate red and white meat. The researchers then compared people hitting China's recommended meat intake for older adults against those eating meat less often. Simple design, large sample, interesting result.

About 17% of the group was classified as frail. Among those who ate meat at the recommended frequency, the odds of being frail were roughly 30% lower than among those who ate it less often. That gap held up even after the researchers controlled for age, physical activity, chronic illness, and vegetable intake. It stayed consistent across sexes, across urban and rural residents, and across most age brackets.

The One Group Where the Pattern Broke Down

Here's where it gets interesting. In adults 80 and older, the meat-frailty link essentially disappeared. The researchers float a few plausible reasons: appetite tends to shrink past 80, digestion becomes less efficient, chronic conditions multiply, and the body's ability to actually use the protein you eat — a phenomenon called anabolic resistance — gets worse. In other words, at a certain point, eating the protein isn't enough. Your system also has to be able to do something with it.

This matters because it undercuts any lazy reading of the study as 'eat more meat, live forever.' The real takeaway is more nuanced. Protein helps, up to a point, and only when your body can still handle it. After that, the game shifts to a wider set of interventions — strength training, managing illness, sometimes supplementation.

Why This Isn't a Case for More Meat

Before anyone takes this as license to double their steak intake, a few important caveats. First, this was a cross-sectional study. The researchers looked at diet and health at a single point in time. That design can show a correlation but can't prove cause and effect. It's entirely possible that healthier people simply ate meat more often — because they could chew it, afford it, cook it, or digest it. Frailty might be the reason they ate less meat, not the result of it.

Second, meat is one source of protein among many. The study used meat as a proxy for a certain pattern of eating, not as a prescription. Beans, lentils, tofu, tempeh, eggs, fish, dairy, nuts, and seeds all contribute to the same goal: giving your muscles the amino acids they need to rebuild themselves on a daily basis. If you've chosen a plant-based path for ethical, environmental, or personal reasons, the research doesn't contradict that choice. It just reminds you to be deliberate about where your protein comes from.

Third, protein without movement is only half the equation. Muscle is a use-it-or-lose-it tissue. You can eat perfectly and still lose strength if you spend your days sitting. Resistance training — even light, consistent work with bands or bodyweight — gives your body the signal to keep the muscle you're feeding.

How Much Protein Do Older Adults Actually Need?

The old recommendations hover around 0.8 grams per kilogram of bodyweight. Most researchers working on aging now think that figure is too low for people over 60. Many suggest something closer to 1.0 to 1.2 grams per kilogram, with some going higher for adults doing regular strength work. For a 70-kilogram person (around 155 pounds), that's somewhere between 70 and 90 grams of protein a day — more than most older adults are actually eating.

Distribution matters too. Your body can only use so much protein at once, so spreading intake across three or four meals is more effective than loading it all into dinner. A rough rule of thumb:

• Breakfast: 20-30 grams (eggs, Greek yogurt, a protein-forward smoothie, or beans on toast if you're feeling cosmopolitan)
• Lunch: 25-35 grams (fish, lentil stew, chicken, tofu scramble)
• Dinner: 25-35 grams (whatever the main dish is, built around a solid protein source)
• Optional snack: 10-15 grams (cottage cheese, nuts, hummus with vegetables)

If your appetite has shrunk — which happens to almost everyone eventually — smaller, more frequent meals tend to go down easier than big plates. Protein-rich snacks become more useful than they sound.

Why Any of This Matters for Plant Medicine Work

Here's the connection a lot of retreat-seekers miss. Plant medicine ceremonies, whether we're talking about ayahuasca, psilocybin, San Pedro, or ibogaine, are physically demanding. You're often fasting beforehand, following a strict dieta, sitting upright for hours in ceremony, sometimes purging, sometimes sleeping poorly for days on end. People in their 50s, 60s, and 70s increasingly show up at retreats hoping to work on long-held trauma, process grief, or address stuck patterns around addiction. The ones who do best, from what facilitators I've spoken with consistently report, are the ones who arrived with a baseline of physical resilience.

That resilience is built slowly, in the months before the retreat even gets booked. Eating enough protein. Walking daily. Doing some form of resistance training. Managing blood sugar. Sleeping as well as circumstances allow. None of this is sexy, and none of it will show up on a retreat brochure, but it's the quiet foundation that lets the deeper work actually land.

I've watched people have beautiful ceremonies and then struggle to integrate because they were too physically depleted to do the walking, journaling, bodywork, and conversation that integration demands. I've also watched older participants surprise everyone — including themselves — because they'd spent the previous year quietly getting stronger.

The Honest Bottom Line

One study doesn't change the world, and this one definitely doesn't. But it points in the same direction as a growing body of research: as you age, protein and movement matter more, not less. The meat finding is interesting, the 30% figure is attention-grabbing, and the caveats are real. Take it as another small nudge rather than a mandate.

If you're weighing a retreat somewhere down the line — whether that's six months or six years out — treat the preparation as part of the medicine. Build the body you want to show up in. For readers thinking about this kind of deeper work, a range of curated plant medicine and ayahuasca retreats can be browsed on our marketplace here, and most of them will tell you the same thing from a different angle: the strongest version of you is the one that gets the most out of the experience.