Pod Insights Habits and Hustle Episode 456: Why Half Your Supplements Are Probably Useless (And Which 4 Actually Matter) About this episode Are you throwing money away on supplements that do nothing? In this Fitness Friday episode on the Habits and Hustle podcast, Liron Kayvan and I break down the supplement industry's biggest myths and reveal which ones are actually worth taking.
We discuss why most supplements are unregulated snake oil, the importance of third-party testing, and how to cycle supplements so your body doesn't become desensitized. Plus, we share our personal supplement protocols and explain why getting blood work is non-negotiable before starting any regimen.
Liron Kayvan founded BFLA in 2019. He's a NASM Certified Group Fitness Instructor, Personal Trainer, and Transformative Life Coach. Liron has competed in Amateur MMA, Brazilian Jiu Jitsu, and Rugby and has been a Fitness Coach for over 10 years.
What we discuss:
Why supplements should be the smallest part of your health pyramid
The lack of FDA regulation in the supplement industry
Essential supplements: creatine, omega-3, vitamin D with K2, magnesium
Why creatine isn't just for bodybuilders (new Alzheimer's research)
The importance of third-party testing and NSF certification
How to cycle supplements to prevent tolerance
Why you need blood work before and after supplementation
NAD and alpha-GPC for brain health
Working with your natural patterns vs. fighting them
The difference between giving energy vs. getting energy from exercise
Thank you to our sponsor:
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Therasage: Head over to therasage.com http://therasage.com/ and use code Be Bold for 15% off
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Magic Mind: Head over to www http://www/.magicmind.com http://magicmind.com//jen and use code Jen at checkout.
Bio.me: Link to daily prebiotic fiber here https://bio.me/?utm_source=Jennifer, code Jennifer20 for 20% off.
David: Buy 4, get the 5th free at davidprotein.com/habitsandhustle http://davidprotein.com/habitsandhustle.
Find more about Liron Kayvan:
Website: https://www.beyondfitnessla.com/
Instagram: @beyondfitnessla https://www.instagram.com/beyondfitnessla/
Find more from Jen:
Website: https://www.jennifercohen.com/
Instagram: @therealjencohen
Books: https://www.jennifercohen.com/books
Speaking: https://www.jennifercohen.com/speaking-engagements
Transcript Speaker names marked ? are inferred from speaking time and the show’s known hosts — they are not voice-verified.
0:01 Speaker 00 Hi guys, this is Tony Robbins. You're listening to Habits and Hustle. Crush it.
0:08 Jen Cohen? Hey friends, you're listening to Fitness Friday on the Habits and Hustle Podcast, where myself and my friends share quick and very actionable advice for you becoming your healthiest self. So stay tuned and let me know how you leveled up.
0:30 Jen Cohen? Before we dive into today's episode, I want to thank our sponsor Momentous. When your goal is health span, living better and longer, there are very few non-negotiables. One of them, quality. And when it comes to supplements designed for high performers, nobody does it better than Momentous. Momentus goes all in on NSF certification, which means every single batch is tested for heavy metals, harmful additives, and label accuracy. And that's why they're trusted by all 32 NFL teams and top collegiate sports dietitians across the country. Here's the thing, they don't sell every supplement
1:11 Jen Cohen? under the sun, because they believe in nailing the basics with rock solid consistency, and those basics are protein and creatine. Momentus sources Creapure, the purest form of creatine monohydrate available, an absolute must for both men and women who want peak physical and cognitive performance. So if you're serious about leveling up, go to livemomentous.com and use code GEN for 20% off. Just act now. Start today. GEN for 20% off. livemomentous.com.
1:54 Jen Cohen? All right, you guys, we're here for another Fitness Friday program. That program.
2:00 Speaker 02 You've got another F in there.
2:01 Jen Cohen? I know, I know. Fitness Friday fun, I know. And Lirun's joining me yet again. And we pick a topic and we just like blab for a few minutes. And then we cut it. So remember, guys, very important, we love feedback on habits and hustle. The more feedback, the better. Please let us know what you think. If there's something you want us to talk about, all the things. And don't forget to subscribe. With that being said, what do you think about the topic that I just chose, which is supplements?
2:31 Speaker 02 Supplements. I mean, the basic thing, and I think people know this, most people know this. But if you don't, just good to remind yourself is like, you kind of want a pyramid. Think of like maybe a three tiered pyramid. And you want, you know, the foundation, the fundamentals to be like training and nutrition. And then as you go up, you know, sleep, or maybe sleep is the foundation. You can play around with the bottom, but either way, the top is supplements. Meaning the smallest part of the pyramid, the last thing you focus on after you've got everything else together, should be supplements. They're kind of icing on the cake.
3:06 Jen Cohen? Yes.
3:06 Speaker 02 It should be done in moderation.
3:08 Jen Cohen? Yeah, well, I don't even think done in moderation. I think it's supplemental. I think the word supplements.
3:13 Speaker 02 Literally by definition.
3:14 Jen Cohen? By definition of what supplements are is supplemental. It doesn't take the place of eating properly and eating well. And like with like a lot of different nutrients that our bodies crave and need. Doesn't take the place of exercise. It doesn't take the place of sleep. It helps with overall, you know, your overall. And by the way, a lot of these supplements don't do anything. I think we're living in a time when we are all chasing youth. And longevity has become such a huge, huge brand in itself that people keep on creating these products that actually have zero, there's no FDA regulation on any of these things. There's zero efficacy on these things.
3:59 Jen Cohen? And so like, I believe that people need to be super, super careful of where and who they're getting their information and like do their research. Because a ton of supplements that come my way, I'm like, are you kidding me? Like it's snake oil.
4:12 Speaker 02 Yeah.
4:13 Jen Cohen? You know, like there's certain things I think are really good. But I know the source and I think that there are certain supplements that are essential because we can't get it in our foods necessarily, or that, like I said, like I think they're doing a very specific thing. But overall, I mean, you can't just be like taking everything willy nilly. So these are, this is, this is the stuff that I think is really important. Are you ready? And then I want to hear your list. Okay? I think that omega three is really important. I think vitamin D with K two has to be taken together, or it's not going to do what you need it to do. Well, it won't digest, absorb. I think that creatine is very important. It's not just for bodybuilders anymore.
4:58 Jen Cohen? And I believe, well, protein, I like, that's not really a supplement. And I also do take NAD. I take trinogent. And the reason why I've been taking that is because it's a molecule that our bodies actually make, that we actually stop making, as I think after the age of thirty, as we age. But what this does, it's a precursor. So it basically make, it tells your body, basically you take the supplement, but it gets your body to make it on its own.
5:26 Speaker 02 That's always a better show.
5:27 Jen Cohen? Way better thing.
5:28 Speaker 02 Way better thing to do.
5:29 Jen Cohen? Than just like taking something that's a supplement on like, that's it.
5:33 Speaker 02 Yeah.
5:34 Jen Cohen? And so a lot of these other things are complete, I hate to say it, completely unnecessary.
5:39 Speaker 02 Yeah.
5:40 Jen Cohen? And it's just like, it's your, you're throwing your money down the drain.
5:43 Speaker 02 Yeah. Yeah.
5:45 Jen Cohen? What do you think?
5:45 Speaker 02 Should I riff on those specifically or talk about what I?
5:48 Jen Cohen? No, I want, first I want to hear what you take.
5:49 Speaker 02 So right now I am actually taking creatine.
5:51 Jen Cohen? You don't always take it?
5:52 Speaker 02 No.
5:53 Jen Cohen? Why?
5:54 Speaker 02 So creatine is a great supplement. I think it's the most, we've spoken about this.
5:59 Jen Cohen? Most researched.
6:00 Speaker 02 The most researched supplement ever.
6:02 Jen Cohen? Ever, ever. And a new.
6:04 Speaker 02 And not just for bodybuilders at all. I think bodybuilding and sports is like a small fraction of that.
6:09 Jen Cohen? I want to say one thing about creatine because I just read this study yesterday. They did a huge thing for how, like a big research has just came out, I think a couple of days ago, the how, how creatine actually improves Alzheimer's.
6:24 Speaker 02 Alzheimer's, yeah, I just saw that one.
6:26 Jen Cohen? You saw that?
6:26 Speaker 02 I sent that to my brother in law, who's a neurologist. I have to hear back from him, but yeah.
6:30 Jen Cohen? My mom was diagnosed with Alzheimer's.
6:33 Speaker 02 So many.
6:34 Jen Cohen? Three months ago.
6:35 Speaker 02 So many elderly people.
6:37 Jen Cohen? It's really sad. And so I I'm really always on the lookout for anything that can like just like give her like a point.
6:44 Speaker 02 That study was super.
6:46 Jen Cohen? Advantage.
6:47 Speaker 02 Promising. Yeah, it was really promising. The creatine Alzheimer's studies, people are into studies, check that one out. That was really, I looked that up. That was really promising.
6:55 Jen Cohen? No. So let me just say that again for people because I think this is really important. If you know of somebody or if you have any type of, I think for, I shouldn't even say that. What I should say is just forget about the muscle work for for lean muscle mass. Forget about performance. Let's put that aside. If you're somebody who just wants to have overall better brain health, it helps with your memory and overall cognitive skills, you should start taking creatine.
7:21 Speaker 02 Yeah.
7:21 Jen Cohen? You should start taking it.
7:22 Speaker 02 Yeah.
7:22 Jen Cohen? Because I think it's very, very helpful.
7:24 Speaker 02 Yeah.
7:25 Jen Cohen? But I would say also, and that's not me, that's the that's the the study that we saw. But I do think also knowing where you're getting it from. Very important.
7:33 Speaker 02 Yeah, some of them have like heavy metals and stuff in them.
7:35 Jen Cohen? Well, you have to make sure. This is another thing. If you're gonna take any supplements, make sure they're third party tested. Make sure that they have a really high regulation. So I take Momentus because they have an NSF regulation and they're third party tested, which means I think NSF is like the highest you can you can have. And so it's a trusted source. So if you don't want to, I don't care what what brand you take, but make sure you're not just taking some like, you know, brand that you saw on Instagram. That your favorite influencer is taking because who knows, they can be getting paid for it. You never know. And I also think that if you're going for creatine, have you heard of whitewash versus acid wash?
8:15 Speaker 02 No.
8:16 Jen Cohen? I think that's what it's called. I'm not sure, but the one I the Momentus one, it has it's Creapure, I think it is. It's whitewash. I don't even know what that means exactly, but I I listened to Dr. Stacy Sims and she said that's very important.
8:28 Speaker 02 Okay, well, I'll take Dr. Stacy Sims word for it.
8:32 Jen Cohen? Yeah. So I also interrupted you. I'm sorry. Tell me what you you take.
8:35 Speaker 02 Not sure exactly where I was, but creatine I take. And I think with things like creatine, what's awesome about creatine is because it's such a foundational building block of like everything in our body because it's it's part of the energy system, the ATP system. Anyway, don't want to go too far into the science and I also don't know it that well.
8:54 Jen Cohen? Right.
8:54 Speaker 02 But it's, I know it's a foundational kind of building block for, for a lot of your, you know, processes in the body. So it has multiple benefits, like all boats rise with the tide. It's not just for muscles. It's not just for your brain. It's not just for your.
9:10 Jen Cohen? Right, right, right.
9:10 Speaker 02 Energy, it's not just for, you know, they give it to women to increase their baby's birth weight.
9:15 Jen Cohen? Are you talking about creatine still?
9:16 Speaker 02 Yeah.
9:17 Jen Cohen? Yeah, okay.
9:17 Speaker 02 Yeah, yeah, yeah. So when you have a supplement, my point is that when you have a supplement that does just these really wide ranging, has these really wide ranging benefits, chances are it's because your body is supposed to have it naturally. And creat, if you were, if you were eating as nature intended, you probably wouldn't need to supplement so much because.
9:40 Jen Cohen? Well, you can find creatine, I believe, like you get it in meat, right? Red meat.
9:44 Speaker 02 That's, that's what I'm saying.
9:45 Jen Cohen? Right, like you can get a lot of these things, I mean.
9:47 Speaker 02 People don't eat enough red.
9:48 Jen Cohen? People don't eat enough protein, but the other thing, oh, I find this also, I should, I, I kind of like made, I was remiss. I also forgot, I also take at night, not in the morning, I take magnesium.
10:00 Speaker 02 Yeah.
10:00 Jen Cohen? Because our bodies are needed that.
10:02 Speaker 02 Same thing, it does like everything, you know, it does. I don't think there's anything that you could mention that magnesium doesn't enhance if you're low in it and you supplement with it, that it doesn't improve, you know, digestive health, energy, skin, hair and nails, sleep, obviously is the big one that most people take magnesium for. So.
10:20 Jen Cohen? But I, I want to say something also, so what, what, you take magnesium?
10:23 Speaker 02 I take magnesium too, yes.
10:24 Jen Cohen? Okay, so you take magnesium, you take creatine?
10:26 Speaker 02 Yeah.
10:27 Jen Cohen? Anything else?
10:28 Speaker 02 I think that's about, actually Alpha GPC is a form of choline, which is naturally present in eggs. So it helps with brain performance. If you were to eat a diet rich in choline, which I think eggs is the main, eggs and liver are like some of the main source, you probably wouldn't.
10:45 Jen Cohen? Need it?
10:45 Speaker 02 Need it as, as much, but I'm just not eating as much as I usually do. So I'm supplementing with Alpha GPC, it's for brain health essentially.
10:52 Jen Cohen? See, this is the thing, like you couldn't talk to-
10:54 Speaker 02 Great performance.
10:56 Jen Cohen? There's so many different things out there that say that they're for brain health, but do they really help brain health? Like, I have a reason for taking everything. I take like the True Niagen for recovery and for energy and cellular health. I take my vitamin D for, I mean, I think everyone takes vitamin D at this point.
11:14 Speaker 02 Yeah.
11:15 Jen Cohen? I take omega, I mean, I for, I take-
11:17 Speaker 02 I didn't take vitamin D, by the way.
11:18 Jen Cohen? You don't?
11:18 Speaker 02 No.
11:19 Jen Cohen? Why?
11:19 Speaker 02 Cause I get a lot of sunlight.
11:21 Jen Cohen? So that's interesting. So they say even with sunlight, cause we live in California-
11:25 Speaker 02 Like, my wife is low and she's much lighter than me, so it should be easy for her to get it.
11:29 Jen Cohen? You know what I will say-
11:30 Speaker 02 But she's low, yeah, I'm not.
11:31 Jen Cohen? I want to say something else, that I think it's important for people to make sure before they even supplement, to get it blood panel-
11:38 Speaker 02 Yeah, she just got her blood done.
11:40 Jen Cohen? To see where you're deficient.
11:41 Speaker 02 Yeah.
11:41 Jen Cohen? Don't just like, just like randomly, oh, okay, you know, willy nilly, just start taking something. Cause you may think that you need vitamin D, like, but not need it. Or you may think you don't need something and then need it.
11:52 Speaker 02 Yeah.
11:53 Jen Cohen? And then also get retested again in six months.
11:56 Speaker 02 To see if it's working or your supplement is actually being absorbed, yeah.
11:59 Jen Cohen? To see, to see if your supplements are even being absorbed. Or if now you're over, if you're, you might be over the limit that you should be. That's what happened with me and vitamin D. I was taking like, you know, the 5,000 ICUs, like they, everyone, everyone says to take. And then I was taking it for so long that when I got my blood back, I was like, they were like, actually, you're taking too much of it. You gotta back off of that.
12:19 Speaker 02 Yeah, it can be toxic in, in high enough doses. Most people are just low because, again, it goes back to nature. Like, we are not meant to be indoors all the time. Like, in nature, you're very rarely indoors. And we've evolved for a natural living. So in our society, in modern Western world, we're indoors.
12:37 Jen Cohen? Yep.
12:38 Speaker 02 And that's why we need to supplement with D. And darker skinned people are gonna need a lot more. If you're darker skinned and you're living in a colder place, you know? If you're dark and you're living in Europe, you know, Western Europe, or you're living in New York, you're gonna need a lot more vitamin D than, than other people. So there's a, there's a, you know, you're working with nature, is my point. You should be working with nature and you should learn a little bit about how nature works and use that as a springboard for your supplementation.
13:05 Jen Cohen? I think that's too, honestly, no offense, but I think that's a little complicated, to work with nature and know how nature works. That's not really how most people would-
13:13 Speaker 02 No, they don't, but I think it would fix a lot of-
13:16 Jen Cohen? Or like, why don't you just like be, like, kind of be, kind of like- In tune with where where you have symptoms. If you feel tired all the time or lethargic, maybe, you know, maybe then you should, well, then you should get a test to see like what you're really low in. Maybe it's because you you're, you know, maybe I'm not, I'm not a doctor.
13:34 Speaker 02 But you intuitively already do this, like I know you walk everywhere.
13:38 Jen Cohen? I walk everywhere.
13:39 Speaker 02 That's being in tune with your nature.
13:40 Jen Cohen? I am, no, that's because I don't like to sit still. And I think better when I move. And so I walk and do my phone calls.
13:51 Speaker 02 You're listening to your body.
13:52 Jen Cohen? True.
13:52 Speaker 02 Yeah.
13:53 Jen Cohen? And so I think better when I walk. And that's the other thing. And what's the other reason why I like to walk? I like, oh, my mood.
14:02 Speaker 02 Yeah.
14:02 Jen Cohen? My mood, most important thing, because if I don't move for an extended period of time, my mood dips, my energy dips. Energy begets energy, like the more I move, the more energy I have. The less I move, the less energy I have. That's why when people say they don't like that they're they're too tired to exercise, I never understand that because if you actually exercise, you will feel way more energetic afterwards.
14:28 Speaker 02 That's a big problem people have is they think they need to give energy to work out. And it's fundamental, the difference, fundamental difference in how fit people see working out and how non-fit, meaning people who don't have the habit of working out, see fitness is that they think they need to go to the gym to to give energy. And we know that you go to the gym to get energy. There's energy in you, it's there. Nobody doesn't have any energy in them.
14:55 Jen Cohen? Most of the time I work out, most of the time I work out, I'm not in the mood. I'm very rarely interested in like working out. I'm exhausted, I'm tired, I've got a ton of shit to do. But every single time I've done it, I feel way better and I get more done and I have way more energy. And that workout actually wasn't as bad as I thought. It's the first five, 10, 15 minutes that suck. But then you get into like, you know, you get into the groove.
15:21 Speaker 02 Hundred percent.
15:27 Jen Cohen? Let's quickly talk about a health issue that affects almost all of us. Fiber deficiency. Did you know that 95% of people don't get enough fiber in their daily diet? I was shocked when I learned this because fiber is truly the foundation of overall wellness. It's not just about keeping our digestion smooth and regular, although of course that's super important. But fiber also nourishes the good bacteria in our gut. It supports a balanced microbiome, helps us feel fuller for longer, which makes managing our weight even easier. And it even improves our energy by optimizing nutrient absorption and stabilizing our blood sugar.
16:07 Jen Cohen? That's why I am really excited to share Biome's Daily Prebiotic Fiber with you. This product makes meeting your daily fiber needs simple, enjoyable, and super effective. With eight grams of fiber per serving plus gut-friendly prebiotics, it's designed to close that fiber gap in your diet and support your digestion and gut health every single day. And it fits effortlessly into your routine. Just mix it in the morning smoothie, or tea, or coffee, or afternoon snack, and you're good to go. I love that it's so easy to prepare and you can incorporate it with literally every busy lifestyle.
16:46 Jen Cohen? So if you want to make getting fiber easy, visit Biome, that's B-I-O-M-E dot com, and enter code JENNIFER20 for 20% off your first order of Daily Prebiotic Fiber. That's Biome.com code JENNIFER20 for 20% off. Grab it today.
17:14 Jen Cohen? Okay, so let me just finish what I was saying about supplements and I want to like stay on target here. So number one, know the source that you're getting them from, very important. Get your blood tested before you take it so you know what you're actually deficient in, and get it retested six months later. You should be getting your blood tested every six months just to know that you're on point. And don't over supplement. And the other thing I wanted to say was cycle your supplements, because I think your bodies can also become very, this is how I, this is how I see it. Like if I take my, I've got really bad allergies. And if I take my allergy medication every single day, my body becomes immune to the effects of it. So it doesn't even work. I become
17:56 Jen Cohen? desensitized. So I have to cycle everything. I cycle my supplements too. So I'll do like with my allergy medication, I'll do two weeks on, four days off, two weeks on, because I, because if I don't take my allergy medication, it's like I'm a mess.
18:10 Speaker 02 People have been talking about allergies a lot recently.
18:12 Jen Cohen? Yeah, well, the allergies, it's really bad right now. But you need to cycle everything. So if you're taking, whatever you're taking, whatever you're supplementing with, you need to like, give it a break, like three weeks on, one week off, one month on, one month off, just so your body doesn't get acclimated to anything. And I find that to be super helpful.
18:30 Speaker 02 Yeah, there's no supplement I take 24/7, 365. I'll always take breaks from supplements, if I take them.
18:37 Jen Cohen? There's also like, I should say also, there's other things that I kind of like weave in, in my routine, but I don't take it as often as I do the omega three, the creatine, and like the, what was the other one? NAD, what was the other one I said? Magnesium at night. I take sometimes, I take liposomal vitamin C once in a while, and I take NAC. Do you know what NAC is?
18:59 Speaker 02 It's like your liver, isn't it?
19:00 Jen Cohen? It's like, it's like the precursor to glutathione, which is like a massively strong, best antioxidant. So I take that sometimes, too.
19:08 Speaker 02 Do you feel a difference?
19:10 Jen Cohen? No, I don't feel a difference at all with anything. But I will say, that's to be true, that if I was being honest. But that to me is because I think it's like, I was told if you take it all the time, again, like, doesn't have the same effect.
19:22 Speaker 02 Hmm. Yeah. My supplement protocol and philosophy on supplements is always constantly evolving. It's always changing. And so is the science on a lot of supplements.
19:32 Jen Cohen? Yeah, there's a lot of supplements I might have been understanding, like, I'm just like, why, why? But, okay, well, hopefully that was a little bit informative for you guys. This is supposed to be very short, to the point episode. So hopefully you gleaned at least a couple of things, right? Get your blood checked, cycle your supplements so your body doesn't get acclimated to it. Don't over supplement. Don't replace it with your diet and or exercise and or sleep. It's a supplement. For a reason called supplementing yourself. And yeah, check out Le Ron. What's your Instagram?
20:04 Speaker 02 At BeyondFitnessLA. B E Y O N D F I T N E S S L A.
20:09 Jen Cohen? Thank you.
20:10 Speaker 02 You're welcome.
20:11 Jen Cohen? Bye.
Previous Episode 455: Dr. Vishal Patel: Why Your Feet Control Your Longevity and Most Wellness Tech Is Wrong Next Episode 457: Jeff Byers: The Former NFL Player Exposing the $200 Billion Supplement Scam Page updated November 3, 2026 · transcript and summary are machine-generated