What supplements does a man over 40 actually need?

Four, in Zac's list. Creatine, magnesium glycinate, whey protein, and a multivitamin as a placeholder until bloodwork replaces it with the specific two or three things a man is low on. Everything else is either already covered by food and those four, or is money spent guessing. Anything that turns up on the panel needing a prescription is a physician conversation, which is why there is a doctor in the program and not only a coach.

Is creatine safe for men over 40?

For a healthy man, about as proven as anything on the shelf: thirty years and hundreds of studies have not supported the 1990s rumor about kidneys and cramping. A man with existing kidney disease should check with his doctor. Zac's framing is that creatine is an energy supplement, not a muscle supplement; the brain runs on the same system and creatine tops up the reserve. It does little when you are young and rested and shows up under load. He takes 5 to 10 grams daily, has for years, and has never felt a lightning bolt; anyone who says they felt their brain switch on is feeling their pre-workout.

Glycinate. Oxide is poorly absorbed and the one most likely to send you to the bathroom; citrate absorbs but pulls water into the gut. Glycinate absorbs well at a real dose without the side effects, and the glycine attached to it is calming on its own. Take it before bed, for the tired-but-wired state. Stress, hard training, and a couple of drinks all pull magnesium down, and many men over 40 are already low. The sleep benefit is real, modest, and strongest in men who were low to begin with; it is not a sleeping pill.

Do testosterone boosters work?

Not reliably in a man with normal levels. When researchers looked at 50 booster products, only about a quarter had any data showing they raised testosterone, and about one in ten had data showing they lowered it. Zac bought one years ago, took it for months, felt his energy dip, and his free testosterone had not moved on the next panel. If you are worried your testosterone is low, get bloodwork and talk to a doctor; a $60 bottle is not the answer.

What else should come off the shelf?

BCAAs, if you eat enough protein and take whey, because you are paying twice for the same thing. Greens powders, $40 for the feeling of doing something healthy and a small actual dose per scoop. Collagen for skin and joints, which is broken down in digestion rather than delivered to your face and knees; some peptides have modest evidence, not for the reason the ads imply. Fat burners, which are caffeine with a markup. Detox and cleanse products, most of which are laxatives dropping water weight; you already own a liver and two kidneys. High-dose vitamin C past the point of absorption. And high-dose biotin, which barely works and can throw off blood tests, including the thyroid test and the one for heart attack, corrupting the panel the whole model depends on. Melatonin works but is oversold: about seven minutes faster to sleep on average.

Why does he keep coming back to the blood panel?

Because every product on the stop list sells certainty with no information underneath, and the panel is the opposite. Every dollar on the shelf is a dollar spent guessing when a test would have said precisely what you need. For most men the four staples plus real food is the whole answer. For some, the blood shows something genuinely off, and then they are fixing a real problem instead of guessing at it. Nothing is added until it is measured.

The only supplements you need to reverse aging after 40

Q: Why does whey matter more after 40, not less?

Anabolic resistance: aging muscle responds less to the same amount of protein, so the bar goes up at the age most men's intake drifts down. Whey is one of the most leucine-rich proteins available, and leucine is the amino acid that flips the muscle-building switch that has gone sluggish. The target is about a gram of protein per pound of target body weight, 180 grams for a man aiming at 180 pounds, and a normal breakfast does not get a busy man close. That gap is the shake's entire job. Real food first, whey to close it.

What this episode says

Four staples. Creatine, 5 to 10 grams a day: an energy supplement rather than a muscle supplement, safest and most studied on the shelf, and it shows up under load, hour six of a hard day on four hours of sleep, not as a feeling.
Magnesium glycinate before bed, not oxide or citrate: well absorbed, calming from the glycine, and it fills a gap most stressed, training, drinking men over 40 already have. The sleep benefit is real, modest, and strongest in men who were low.
Whey protein, because of anabolic resistance: aging muscle responds less to the same protein, so the bar rises as intake drifts down. Whey is leucine-rich and closes the gap to one gram per pound of target body weight that breakfast never reaches. Real food first.
A multivitamin is a placeholder you take when you have no information. Once you test, you replace it with the two or three things you are actually low on.
Stop buying: testosterone boosters (of 50 products studied, about a quarter had data showing any rise and one in ten showed a drop), BCAAs if you eat protein and take whey, greens powders, collagen for joints, fat burners, detox and cleanse products, high-dose vitamin C, and high-dose biotin, which can corrupt the thyroid and cardiac blood tests this whole model runs on. Melatonin works but gains about seven minutes.
Every product on the stop list sells certainty with no information underneath. The panel is the opposite: you do not add anything until you measure, and anything that needs a prescription is a physician conversation.

A multivitamin is what you take when you are guessing. The panel is how you stop.

The premise

Zac has spent thousands on supplements over the years and says most of it was wasted. After 40 the body changes in a way that makes half the shelf useless and a few things non-negotiable. This is the short list he keeps, the list he tells men to stop buying today, and the one test that ends the guessing.

The four to keep

Creatine. The one most men his age skip, on the strength of a 1990s rumor that it was almost a steroid and would wreck the kidneys. Thirty years and hundreds of studies in healthy people later, none of it held; a man with existing kidney disease checks with his doctor, and for everyone else it is about as proven as anything on the shelf. It is not a muscle supplement; it is an energy supplement, and muscle was just the first tissue studied. The brain runs on the same system and creatine tops up the reserve. It does little when you are young and rested and shows up under load: hour six of a hard day, four hours of sleep, a decision that still matters. Zac takes 5 to 10 grams a day, has for years, with no side effects and no lightning bolt; the brain saturates slower than muscle, and nobody has proven a higher dose sharpens thinking. His line: the day he sells you his feeling instead of the data is the day to stop listening.

Magnesium glycinate. The form is the whole point. Oxide is poorly absorbed and sends men to the bathroom; citrate absorbs but pulls water into the gut. Glycinate absorbs well at a real dose without the side effects, and the glycine is calming on its own. Stress, hard training, and a couple of drinks pull magnesium down, and many men over 40 are already low. Take it before bed, for the tired-but-wired state where the body is done and the head will not shut off. The sleep benefit is real, modest, and strongest in men who were low. It is not a sleeping pill; it fills a gap.

Whey protein. This one matters more after 40 because of anabolic resistance: aging muscle responds less to the same protein, so the bar rises at the exact age most men’s intake drifts down. Whey clears it because it is among the most leucine-rich proteins available, and leucine flips the muscle-building switch that has gone sluggish. The target is about a gram per pound of target body weight, 180 grams for a man aiming at 180, and a normal breakfast does not get a busy man close. That gap is the shake’s only job. Real food first, whey to close it. Defending your muscle is how you defend your age.

A multivitamin, as a maybe. An insurance policy you take when you have no real information: a wide, shallow net for obvious gaps. Not useless, but a placeholder. Once you test you do not need a generic pill covering twenty things you are fine on; you need the two or three you are actually low on. A Johns Hopkins-led editorial in a major medical journal was titled Enough is enough: stop wasting money on vitamin and mineral supplements, after multivitamins failed to move heart disease, cancer, or memory.

The shelf to stop buying from

Ranked by how much you are wasting. Testosterone boosters first: of 50 products researchers examined, about a quarter had any data showing a rise and about one in ten showed a drop, so you are as likely to hurt the thing you are trying to fix. Zac bought one, took it for months, watched his energy dip, and his free testosterone had not moved on the panel. If you are worried your testosterone is low, get bloodwork and talk to a doctor. BCAAs are paying twice if you eat protein and take whey. Greens powders are $40 for a feeling; he cut his when he saw the actual dose in a scoop. Collagen is broken down in digestion, not shipped to your face and knees; some peptides have modest evidence, not for the reason the ads imply. Fat burners are caffeine with a markup; fat loss comes from the boring basics. Detox and cleanse products are mostly laxatives dropping water weight; you own a liver and two kidneys. High-dose vitamin C is water soluble and past the point you pee it out; eat a bell pepper. Biotin for hair and nails barely works and, at high doses, can throw off blood tests including the thyroid test and the one for heart attack, corrupting the panel the whole model runs on. Melatonin he will not fully trash: it works, and gets you to sleep about seven minutes faster on average, so know what you are buying. Underneath all of it: the industry is not regulated the way people assume, and what is printed on the bottle may not be what is in it.

The model

Every product on the stop list has one thing in common. It sells certainty with no information underneath, which is the exact opposite of testing. Every dollar on the shelf is a dollar spent guessing when a blood panel would have said precisely what you need. Nothing is added until it is measured. For most men the four staples plus real food is the entire answer, and a cabinet of bottles goes in the bin. For some, the blood says something is genuinely off, and now they are fixing a real problem. If it needs a prescription, that is a conversation with a physician, which is exactly why there is a doctor in this model and not only a coach.

Transcript

Full text, timestamped

Auto-generated from the episode audio and lightly formatted. Each timestamp links to that moment in the video.

0:00 I’ve spent thousands of dollars on supplements over the years, and most of it it was wasted. So, let me save you the money I didn’t save. After 40, your body changes in a way that makes half of the stuff on the shelf useless. [music] And a few things go from nice to have to non-negotiable. This is a short list before I’d actually keep and the ones I tell you to stop buying today. And the one test that makes the whole guessing game go away. The first one is the one that most men my age skip, and it’s also the best value on the entire shelf. Number one, creatine. And most men my age skip it because of a rumor that was from 30 years ago. Back in the ’90s, it got branded the almost a steroid supplement. The one that was going to wreck your kidneys and dehydrate you into cramp. 30 years and hundreds of studies later in healthy people, none of that’s held up. It’s one of the most safest, most studied supplements on Earth. If you got an existing kidney disease, check with your doctor. But for a healthy man, this is about as proven as it gets. And it isn’t what you think it is. Creatine isn’t a muscle supplement. It’s an energy supplement. Muscle was just the first tissue they studied. Your brain runs on the same

1:01 Energy system, and the creatine tops up the reserve tank. And I’ll be straight with you about where it shows up because most people in my space, they’re not. It doesn’t do much when you’re young and rested. [music] It shows up under load. Hour six of a hard day, four hours of sleep, and a decision that still matters you’re too deep into it to notice. So, I’m not going to sell you a feeling. I never felt a lightning bolt. Nobody does. Anyone who tells you they felt their brain switch on is either selling something or feeling their pre-workout. What I can tell you is the honest version. I take it daily. I run it for years. Zero side effects. 5 to 10 g a day is a standard. Your brain actually saturates slower than your muscle. So, some people run higher, 10 g, but that hasn’t been proven to give you sharper thinking. So, don’t let anyone sell it to you in that fashion. The day I start selling you my feeling instead of the data is the day you should stop listening to me. [music] Number two, magnesium glycinate. That word glycinate is the whole point because the form is where most men get it wrong. The cheap one, magnesium oxide, is both poorly absorbed and the one most likely to send

2:02 You running into the bathroom. Citrate is absorbed fine, but it pulls water into your gut, and so it can loosen things up. Glycinate is well absorbed in general, so you can take a real dose without the side [music] effects. The glycine is attached to it, so it’s calming on its own. A lot of men over 40 are already low on magnesium, and stress, hard training, and a couple drinks is going to pull it down further. Take it before bed, when you actually want your system to downshift. You know the state I mean, tired but wired. Body’s done, but head won’t shut off. I’ll be honest about the evidence. The sleep benefit is real, but it’s modest, and it’s [music] the strongest in men who were low to begin with. So, it’s not a sleeping pill. It fills a gap most men have, and most men sleep a little better once it’s filled. Number three, whey protein. And this one matters more after 40, not less, because of something called anabolic resistance. In plain terms, aging muscle responds less to the same amount of protein. So, the bar goes up when most men intake drift down. Whey clears that bar because it’s one of the most leucine-rich proteins you can get. And leucine is the amino acid that flips the muscle-building switch, the exact

3:02 Switch that’s gone sluggish. The target is about a gram of protein per pound of your target body weight. Do the math for a second. If you’re aiming for 180 lb, that’s 180 g a day. A normal breakfast doesn’t get a busy man anywhere near that. That’s the entire job of the shake. It’s the easiest way to clear a bar that keeps getting higher. Real food first, whey to close the gap. This was never about a pump. Defending your muscle is how you defend your age. Number four is a maybe, and I’ll tell you why. It’s a multivitamin. It’s an insurance policy you take when you have no real information, a wide shallow net for the obvious gap. It’s not useless, but it’s a placeholder. Because a multivitamin is what you take when you’re guessing. The panel is how you stop guessing. Once you actually test, you don’t need a generic pill covering 20 things you’re already fine on. You need two or three things you’re actually low on. Even the research is unimpressed. A Johns Hopkins-led editorial in a major medical journal was titled, and I’m not making this stuff up, “Enough is enough. Stop wasting money on vitamin and mineral supplements.” After the study found multivitamins didn’t move the needle on

4:02 Heart disease, cancer, or memory. If you want the exact stack that’s right for a man over 40, the brands, the doses, link’s in the description. Now, the part that saves you the most money, the shelf to stop buying from. I’ll rank it by how much you’re actually wasting. Number one offender, testosterone boosters. If you’re worried that your T is low, get your blood test and talk to a doctor. A $60 bottle isn’t the answer. The herbal stuff, tribulus, the rest, doesn’t reliably move the testosterone in a man with normal levels. And this is the number that should end the conversation. When researchers looked at 50 of these booster products, only about a quarter had any data showing they raised testosterone at all. And about one in 10 had data showing they lowered it. You were as likely to hurt the thing you’re trying to fix. I bought one myself years ago. My energy it actually dipped. Took it for months. Then I went actual blood work and my free testosterone hadn’t moved. The bottle couldn’t survive the panel. BCAAs, if you’re eating enough protein and taking whey, you’re already getting this. You’re paying twice for the same thing. Green powders, $40 a tub

5:03 For a feeling of doing something healthy. I cut mine when I saw how little an actual dose was in a scoop. Collagen for your skin and your joints. It gets broken down in the digestion, so it doesn’t get delivered to your face and your knees the way the ads imply. There’s some evidence certain collagen peptides help, but not because you’re shipping collagen straight to where you caffeine with a markup. Real fat loss comes from the boring basics. A capsule, not going to touch that. Detox and cleanse product, you already own a liver and two kidneys. That’s your detox system, and it works [music] for free. Most of these are laxatives that drop water weight, which is why the guy thinks that they work. High-dose vitamin C for immunity, it’s a water soluble, so past the point you just pee it out. Back to the most expensive urine on the block. Instead, eat a bell pepper. And this sneaky one, biotin, the hair and nails pill. Beyond barely working, high-dose biotin can throw off your blood test, including the one that checks for heart attack and the one for your thyroid. So, the bandito pill can literally corrupt your blood work this whole model runs on. One I won’t fully trash, melatonin. It works, it’s just

6:04 Oversold. On average, it gets you sleep about 7 minutes faster, not hours, 7 minutes. Useful, small, just so you know what you’re buying. And the threat under all of this the industry isn’t regulated the way you think it is. So, what is actually printed on the side of the bottle? That might just be Pinocchio. So, you don’t actually know what you’re getting. So, look at that list again. Every product on it has one thing in common. It sells you certainty, but no information underneath it. It’s the exact opposite of testing. Every dollar on the shelf is a dollar spent guessing when a blood panel would have told you precisely what you actually need. That’s the whole model. You don’t add anything until you measure. For most men, the four I started with plus real food is the entire answer. And you just save yourself a cabinet full of bottles. For some men, the blood says something genuinely is off. And now you’re fixing a real problem instead of guessing at it. And if there’s something that needs a prescription, that’s a conversation with a physician, which is exactly why there’s a doctor in this model and not just a coach. Either way, you stop paying to guess. That’s the difference between doing supplements and actually knowing your own body. What to keep or drop. One test that ends the guessing.

7:05 That’s how you fix your medicine cabinet.