Summary
Nail your supplement stack with evidence-based dosing: 3-5g creatine daily, protein at 1.6-2.2g/kg for athletes, and strategic caffeine timing for performance. Most supplements are overhyped, but these few actually work.
Key Points
- Creatine benefits are robust across populations
- 3-5g daily is sufficient for most people
- Caffeine timing matters for performance
- Protein needs higher for athletes (1.6-2.2g/kg)
- Most supplements have weak evidence
- Food first approach is best
Key Moments
Creatine at 3-5g/day: benefits for performance, cognition, longevity, and more
Galpin covers creatine's extensive benefits beyond muscle, including cognition and longevity, plus other supplement categories like fatigue blockers.
"Take, for example, creatine. He laid out all the myriad of benefits of creatine. This is taken in the typically three to five grams per day dose."
Supplement categories: fatigue blockers (beta-alanine), stimulants (caffeine, beetroot)
Galpin organizes supplements into categories -- fatigue blockers like beta-alanine and sodium bicarbonate, and stimulants like caffeine and beetroot.
"From the fatigue blocker is going to be anything like beta alanine or sodium bicarbonate. From the stimulant use, of course, we have anything like a beetroot juice to a caffeine."
Woman drinking 300+ oz of water daily had sleep and focus issues from overhydration
Galpin shares a case study where excessive water intake (300+ oz/day) combined with 8 cups of coffee caused sleep problems and brain fog.
"That's a ton of water. And we were like, holy shit, what are you doing this for? And she's just like, that's sort of like my thing. But she didn't realize it was more of like a nervous tick than it was anything else, right? She just like sip, sip, sip, sip, sip water sip sip water i'm like man how often do you go pee and she's like yeah like every you know 30 minutes or something i'm like fantastic sleep problems focus and so she's smashing caffeine she was at like eight cups of coffee a day which is also going to add to excretion of sodium totally right so it's like okay we don't really need to come in and run a sleep study on you. We're just going to lower your water. And she was like, what? We dropped her down to like 180. So basically an ounce per pound of body weight, which is still high. Cause she did train 180 ounces. Correct. Yeah. She does work out. So she needed to replenish some stuff and we'll cover these numbers in a second. Instantaneously, I mean, like two days in, she's like, oh my God, I haven't slept six straight hours in years."
Low-carb dieters who drink caffeine lose extra sodium and need to supplement it
Combining low-carb diets with caffeine causes double water/sodium loss since carbs hold water and caffeine is a diuretic, requiring deliberate sodium.
"It's bringing water into your system and it holds water. So when you drop carbohydrates, starches in particular, you urinate a lot more. And when you drink caffeine, you also urinate a lot more as you pointed out earlier. So you start combining a few things like slightly lower carbohydrate or low carbohydrate, eating really quote unquote clean. You're not getting a lot of salt in your food and drinking caffeine and then exercising. And then pretty soon those numbers that come along with, um, you know, a gram of sodium in your electrolyte drink are not all that outrageous. And what you find is people feel much, much better when they're getting enough sodium. And of course, I should say that there's no reason why someone has to ingest a supplement like Element or something. There are plenty of other ways to bring sodium into your system. You could use a pinch of pink salt or Himalayan salt or sea salt, or even just table salt in water, or just making sure that you're salting your food enough. And I think that there too, salt appetite and salt taste is a pretty good guide. If you taste something and it tastes really salty to you, that's an indication that either it's really salty or your salt stores are kind of tapped off. You're okay. Whereas if you're craving salt and you're thinking, gosh, I really want to put salt on this already salty thing, not necessarily, but oftentimes that means that you are salt deficient."
Huberman delays caffeine 90-120 min on rest days but drinks it pre-workout on training days
Huberman trains fasted with caffeine but tops off glycogen the night before.
"On days when I don't train, I delay my caffeine intake 90 to 120 minutes after waking. But on training days, it's water and caffeine before the workout."
Caffeine dosing for performance: 1-3mg/kg body weight, taken 30 min before exercise
The evidence strongly supports caffeine's ergogenic effect. A coffee or espresso gets you close to an effective dose at about 1-3mg/kg bodyweight.
"But a coffee is gonna get you close and espresso is gonna get you somewhat in that ballpark depending on source and stuff."
Single-ingredient supplements let you build a rational stack and troubleshoot issues
Galpin advocates single-ingredient formulations so you can add, remove, or adjust each supplement independently rather than relying on proprietary.
"Single ingredient formulations are pretty much the only way to build a rational approach to supplementation and also make adjustments if something isn't working."
Galpin on supplement dependency: the goal is physiological resilience, not reliance
Galpin distinguishes between physiological caffeine dependency and psychological habit, and emphasizes building resilience so you can function well.
"I want to create extremely resilient people and I want to create physiological resilience."
Caffeine borrows alertness from the adenosine system -- with interest
Caffeine blocks adenosine receptors temporarily, but when it clears, adenosine acts even more potently.
"Yes, but then when that caffeine is dislodged from the receptor, then the adenosine can act even more potently at those receptors."
