I Finally Got My Blood Tested. I Wish I'd Done It Sooner.

Genuinely cannot tell you how long I'd been meaning to do this.

It kept getting pushed. Life, cost, the vague sense that I was perhaps fine and would just be wasting money.

The thing that finally made me pull the trigger was realising I'd been taking the same supplements every morning for eighteen months with no real idea if any of them were doing anything. Iron, vitamin D, B12, magnesium. I'd started each of them off the back of some article or conversation and just... kept going. My monthly restock had crept up and I couldn't tell you what, if anything, was actually moving the needle.

So I bought an at-home blood test with Healf Bloods.

I'd assumed it would involve squeezing blood from my finger like I'd done before — I always find those slightly undignified, hovering over a tube willing myself to bleed. It wasn't that at all. The Tasso device goes on your upper arm, you barely feel it, the whole thing took about fifteen minutes. I posted it back the same day.

Results came back within 72 hours. I opened the dashboard a couple of days later and sat with it for longer than I expected.

My ferritin was low. Not catastrophically, but flagged — the kind of low that explains a lot when you think about it. I'd been taking iron but clearly not the right form or dose. My vitamin D was suboptimal despite months of supplementing it. And my oestradiol needed attention, which I hadn't even thought to look at — the dashboard explained it in plain language rather than leaving me to spiral through Google.

I had a 1:1 with one of their nutritionists the following week. She said something that stuck with me: that most people supplement based on what they've read generally, not what their body actually needs right now. Which is exactly what I'd been doing. She adjusted my protocol — different iron form, higher vitamin D dose, and a few things I hadn't been thinking about at all.

Six months later. Ferritin up. Energy different — noticeably, consistently different. I'm not going to overclaim because everyone's results vary, but for me, it was the first time in about a year that I stopped hitting a wall at 3pm.

The thing I keep thinking about: I spent eighteen months buying supplements to fix something I never actually understood the baseline of. The Healf Bloods test cost less than those eighteen months of guessing.