I Used to Wing It — Here's Why That Changed
For a long time, I ran things the way most people do — by feel. If I felt good, I assumed things were going well. If the mirror looked fine, I told myself everything was fine. It wasn't until I actually sat down with a set of bloodwork results that I realised how wrong that approach was. Numbers don't lie the way feelings do. You can feel perfectly healthy while your HDL is dropping and your triglycerides are quietly creeping in the wrong direction. That's a slow problem building in the background, and you won't notice it until it's already a significant issue. That realisation changed how I approach everything — not just supplementation, but nutrition, training load, recovery. Bloodwork first. Everything else is noise until you have that baseline.
Why I Started Researching This
I got into this space because I wanted to understand my own health more deeply. The Irish market is flooded with generic advice — eat less, move more, take your vitamins — and almost none of it is grounded in individual physiology. What works for one person can actively harm another, and the only way to know which category you're in is to test. I started tracking cardiovascular markers specifically because that's where the real risk lives. Heart disease is still the leading cause of death in Ireland, and yet most people have never had a proper lipid panel done outside of whatever their GP orders every few years. I wanted to be more systematic than that. So I started getting regular bloodwork and learning what the numbers actually meant.
What the Research Actually Says
The cardiovascular markers worth tracking aren't complicated, but they do require consistent monitoring to be meaningful. Research suggests that HDL cholesterol functions as a protective factor — it's involved in reverse cholesterol transport, the process by which cholesterol is moved away from arterial walls and back to the liver. Studies indicate that even when total cholesterol looks acceptable, a declining HDL can signal a worsening risk profile. That's the one that tends to get missed. LDL gets all the attention, but HDL trajectory matters just as much in the context of overall cardiovascular health.
Triglycerides are the other marker that research consistently links to metabolic and cardiovascular risk, particularly when elevated alongside low HDL. The combination is sometimes referred to as atherogenic dyslipidemia, and studies indicate it's a more accurate predictor of cardiovascular events than LDL alone in certain populations. Beyond lipids, haematocrit and blood pressure give you a clear picture of circulatory load. Research suggests that elevated haematocrit — even modestly — can increase blood viscosity and put additional demand on the heart. Blood pressure, of course, is its own constraint. These markers don't operate in isolation; they interact, and understanding that interaction is what separates a useful health picture from a fragmented one.
My Personal Experience
My natural resting blood pressure runs around 110/78 — I'm lucky in that regard. But I don't take that for granted. I track it regularly, and I've planned ahead for scenarios where it might change. If I'm ever running a higher-volume cycle of anything that could increase BP, my plan is to introduce telmisartan at 20mg — a low, measured dose — and titrate upward only if I need to. If pressure creeps past 120/80 consistently, I'd move to 40mg. Beyond that, 80mg is available, but the philosophy is always the lowest effective dose. I don't want to medicate past where I need to be.
The lipid side is where I've become most disciplined. I had one period where I noticed my HDL tracking downward across two consecutive blood draws. Everything else looked reasonable — LDL was fine, triglycerides were fine — but that HDL trend bothered me. It should have bothered me, because HDL going down is a problem regardless of what the rest of the panel looks like. I adjusted my dietary fat composition, brought in more structured cardio, and by the next draw the trend had reversed. That specific experience is what cemented the principle for me: lipids are the ultimate constraint. Not how you feel. Not how you look. The numbers.
I'd also say that getting into a rhythm with bloodwork removes a lot of the anxiety that comes with experimenting with anything new. When you have a baseline and you're testing against it regularly, you're not guessing. You either see a problem developing and you can intervene early, or you see stability and you can proceed with more confidence. That clarity is worth more than any supplement or protocol on its own.
What I'd Tell Someone Considering This
Get bloodwork before you start anything. I don't mean a general health check — I mean a full lipid panel including HDL, LDL, and triglycerides, plus hematocrit, blood pressure, estrogen if relevant, and baseline liver values. These are the markers that will tell you if something is heading in the wrong direction, and you cannot interpret "heading in the wrong direction" without knowing where you started.
Start low with anything new and give it time to assess properly. The temptation in Ireland — same as everywhere else — is to jump to a higher dose because someone online got better results faster. In my experience, that's rarely how it works, and it makes it much harder to isolate what's actually happening in your bloodwork. One variable at a time, at the lowest effective dose, with consistent monitoring — that's the only approach that gives you reliable information.
Track your results formally. A spreadsheet, a notes app, whatever works for you — just write it down with dates. Trends matter more than single data points, and you won't see trends unless you're keeping records. If your HDL drops 10% over three months, that's a signal. If it recovers after a dietary change, that's information. You can't act on information you haven't captured.
Finally, don't ignore a marker just because the others look fine. The one outlier in an otherwise clean panel is often the most important thing on the page.
Summary
The shift I made — from going by feel to leading with bloodwork — is the single most useful change I've made to how I approach my own health. The markers that matter most to me are HDL, LDL, triglycerides, hematocrit, blood pressure, estrogen, and liver values. I monitor them consistently, I plan for scenarios where intervention might be needed, and I treat lipids as the primary constraint on everything else I do. That framework has given me more confidence and more clarity than anything else I've tried.
If you're in Ireland and you're trying to navigate this space more intelligently, the free tools at irishpeptides.ie/free-tools are a good starting point — there are calculators and reference tools built specifically to help you track and interpret the numbers that matter. Start there, build your baseline, and go from there.