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🧪 how to optimize your biochemistry (v2025)

Subscribe here | Unsubscribe here | FIV #57 Jan 2, 2025
FounderIV

As we kick off 2025, I'm bringing back a powerful reminder from an early newsletter—because some messages deserve a replay [with some updated #s].

The start of a new year is the perfect time to take stock, not just of your goals, but of your health.

Here's the deal: Small, ignored problems don't stay small. They grow into massive issues—ones that could derail your plans, your momentum, even your life. This isn't about fear; it's about being smart, proactive, and ruthless about optimizing your health.

Let's make 2025 the year you don't just live longer, but live better.

✅ Today's Checklist:
  • Track your health like you track your business
  • How to optimize your biochemistry (& elevate your performance)
  • Whole foods first, supplements second

QUICK LINKS


😃 Longevity. Inflammation and its surprising link to aging.

💰 Sales. 5 sales performance roadblocks and how to overcome them.

🧠 Mental health. A Harvard professor of neurology's perspective on brain health, mental vitality, and how to shield your brain.

📈 Business growth. The key to business development? Modern outsourcing.

🚀 Startup advice. Everything in business is about fighting entropy—here's how Rippling does it.

🖊️ Career advice. How to make a career change successfully (a step-by-step guide).

💤 Sleep. Why your sleep suffers after 30—and what to do about it.

Track Your Health Like You Track Your Business

 
Would you build a business without knowing your monthly or quarterly P&L?

What about other core KPIs such as growth rate, new customer count, or customer satisfaction scores?
 
A black and white image of a quote by Lord Kelvin, a physicist, emphasizing that without measurement, improvement is not possible.

No way—you wouldn't. Because it's impossible to build a good business without understanding, tracking & improving your business' most important metrics.

When I ask founders, "What's more important to you—your health or your business?" most of them will say their health because they know that without their health, their business doesn't really matter.

If this is the case, why do more founders not track their health? That is…

How healthy are you? What are your biggest risk factors? What are your largest opportunities for improvement? What is your biological age? How long are you likely to live? How can you improve your energy and performance?

10 years ago the answer to this may have been that discovering this information was too difficult. But that's no longer true.

Today, for a few hundred dollars per quarter (you can also do it just once), you can sign up for a service that will come to your home, take your blood, and feed you back all of your biomarker data to review with a doctor they assign to you over Zoom. Biomarker data covering your:
  • Hormone balance
  • Critical nutrient levels
  • Metabolic condition
  • Organ health, and
  • Key risk factors
If you're serious about elevating your performance, living your highest quality of life, and also being the best possible entrepreneur you can be, I can think of no greater source of leverage than optimizing your foundation—your body, mind & biochemistry. And the first step is measuring it to know where you're currently at.

Below I'll show you some of the ways I personally use diagnostic testing to improve my performance.

New Year, New Levels of Energy and Vitality


Lifeforce

As the new year begins, it's time to go beyond resolutions and get real insights into your health.

Start 2025 by optimizing your body from the inside out with Lifeforce.

Discover what's really going on with your blood sugar, hormones, and overall health through personalized tracking and expert guidance.

Whether you're looking to boost your testosterone, improve energy levels, or tap into science-backed longevity strategies, Lifeforce is your ultimate partner in making this your healthiest year yet.

A testimonial from Hayden T, 35, UT, a Lifeforce member, saying:

Get started with Lifeforce today and unlock $300 off your first order with code FIV.

Make 2025 the year you don't just live longer—but live better.

How to Optimize Your Biochemistry & Elevate Your Performance

 
I conducted my first blood panel + biomarker diagnostic about 10 years ago. But back then, it was painful & somewhat expensive.

I spent about $2,500 on the various tests and another $1,500 or so analyzing the results (a downloadable PDF) with my functional medical doctor.

It was a beneficial experience (I made impactful changes to my diet & supplement routine based on the results) but very hard to repeat because of the cost & non-existent UI/UX. The tests weren't designed to be repeated, which was problematic because what we really want to see are health trend lines over time.

Fast forward to the 2020s, and we have multiple companies, including Lifeforce, that offer quarterly diagnostic testing at a relatively low cost. The recurring nature of the product is what makes it powerful.

My first diagnostic with Lifeforce was on August 10th, 2022, and these were my top-level results:
 

2 years later, my overarching results looked like this:



 
So I've definitely made some improvements.

My main issue has been genetically high cholesterol (though a good ratio of HDL/LDL and overall low CVD risk as measured by a cardiac scan). I thought about taking a prescription statin to get my cholesterol in range immediately but decided to go at this naturally first, primarily through the inclusion of psyllium husk and red yeast rice. And it's had a major effect:
 

This was done without any medication. Pretty wild.

High cholesterol is often hereditary and should not be alarming on its own. There are many experts who believe high cholesterol is a sign of health. Overall I'm happy to see the progression of my cholesterol levels purely as the result of supplementation (and people say supplements don't matter ;).

The fun part about all of this is that I get to treat my biochemistry and health like a game…testing out various tactics & strategies, assessing their impact, and doing my best to achieve a higher level of health.

A lot more interesting & engaging than a yearly physical with next-to-no constructive feedback.

But remember, everything in your body is connected. When one thing goes up, another may go down. This has happened to me with…
Testosterone.

We are dealing with an epidemic of low testosterone in America and beyond.

Few things are more important to experiencing vitality in life than having adequate levels of this hormone. Want to optimize your energy & how you generally feel?

First, focus here. Both men and women.

My Total Testosterone levels are in an overall good range for my age. But you can see they've been vacillating, with a weird dip in my recent results. This is the lowest Test reading I've ever received:
 

Though I like my SHBG trend:


An elevated SHBG can lead to low Free Testosterone, which is the testosterone that is actually available for your body to use. If your SHBG is too high (often due to stress), your Free Test may be lower than you'd like it to be.

What's been going on here? Well, I'm diving into it with my doctors (with my next telehealth visit scheduled for January), but my thoughts are as follows.

In Q1 of this past year I began supplementing with DHEA in an attempt to boost my free-test and increase my DHEA levels (I only did this because both my DHEA and Estradiol levels were low):



You can see that this has had the intended effect—increasing DHEA and Estradiol. But the "problem" is that while the DHEA initially had a very positive impact on my testosterone and Free-Test levels…


The recent results for my Test and Free-Test have been underwhelming and decreasing to levels I do not like.

The cause?

I believe it could be that while DHEA originally helped, it eventually "hurt" my Testosterone levels as a result of continued use.

OR this could all be due to the Red Yeast Rice—sometimes a "positive" impact in cholesterol (a lowering) can also yield unintended effects (a decrease in other hormones like testosterone). And it's why the jury is still out on whether a "high" total cholesterol is actually good or bad IF your other Cardiovascular risk factors are low (which mine are):




And of course there are many other lifestyle impacts that can have big impacts here (notably—stress, diet and sleep).

Considering that my lifestyle changes have not been significant, I've decided to do the following:

i. Stop taking DHEA to see what the net-net impact is of this (perhaps I'll supplement on and off with DHEA over the year), and

ii. Depending on the results, I may also cycle the use of Red Yeast Rice

The fun and important thing here is that just like in business, I'm testing out different tactics to see what works best for me…and learning a lot along the way. By treating my biochemistry like a game, I'm giving myself a lot of data and information that will be useful to me in the future, and giving myself a chance to experience greater health.

My belief is that just about everyone will be doing this in the future, and it's one of my goals to encourage people to join this game today. Not only to optimize performance but also, and most importantly, to get ahead of some real problems that can derail your life.

Note that I believe in always exhausting natural means before moving to alternative therapies…although alternative therapies can be very effective for certain individuals where natural means aren't effective.

This is a massive subject, and I'm only scratching the surface here…just trying to show specific examples of how I'm using quarterly diagnostics to improve my health & performance. And how you can, too.

Whole Foods First, Supplements Second


If you saw my supplement cabinet, you may make fun of me like this:

A meme comparing the cost of supplements to the cost of food, with the caption "Spends $500 on supplements, $10 on food."

But in all seriousness, you can be a believer in the benefits of supplements while doing everything possible to get most of your nutrients from whole foods. That's what I aim to do.

Supplements are meant to be just that—supplements to your diet.

Saying that supplements don't work is like saying that drugs in pill form don't work.

Yes, many supplements are a waste of money, and the industry is unregulated so you have to be sure you're using the right brands you can trust…

But many supplements can have a significant net benefit on your health & performance (depending on your personal situation, as assessed by your biomarkers via regular diagnostic testing).

Here's my supplement routine which a lot of people think is crazy (note: it's referencing a testosterone reading from a recent Superpower test I conducted—I like using them too ;)

A tweet by Sean Kelly (@seanpk) that reads, "I'm 40, but my biological age is 26. I have as much energy today as I did 20 years ago. My last testosterone reading was in the 95th percentile (823 ng/dL, all-natural). One of my secrets? My supplement regime. Check it out." The tweet includes a picture of a variety of supplements and a weekly pill organizer.

Hope this email inspires you to get tested!

MORE

 

🤝 Let's Connect: Here's my LinkedIn and Twitter/X for more tips & content on how founders can achieve better performance, accumulate more wealth & experience greater freedom.

💬 Reminder: If you want to join us in Los Angeles for founder workouts, please let me know by replying to this email with "Sign me up for FounderIV workouts" and I'll put you on the list.

↩️ Feedback: Have any recommendations for what you'd like to see in this newsletter to help you improve your performance, freedom and/or wealth? Let me know by replying directly to this email. I'd love to hear from you.

That's it for this week. See you next Thursday.

Let's roll,

SPK 🎙️
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FOUNDERIV, LOS ANGELES, CA, UNITED STATES

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