Short answer: Testing first, then supplementing based on the result, gives you a baseline to measure against and a more specific reason for whatever you choose. Buying fish oil first and testing later still works, but it means guessing at dose and necessity until the first test finally happens.
Most people buy fish oil first — it's the more visible, more heavily marketed option, and it feels like immediate action. Testing tends to be an afterthought, if it happens at all.
A baseline number before you start means every decision afterward is informed instead of assumed. You know your starting ratio, which tells you how much room there is to shift, and gives you something concrete to compare against later. Buying first and testing eventually still gets you an answer, just a delayed one, after months of guessing at dose and necessity.
If you're already fairly confident you'll continue testing regardless of order, it's not a critical mistake — the goal is that both eventually happen. But testing first is the more efficient sequence, since it lets your first purchase be informed rather than a guess you'll evaluate later.
If you haven't started either yet, test first. If you're already taking fish oil, test now rather than waiting — a baseline today is still useful, even if it's not a "before" in the strictest sense.
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Is it a waste to test if I'm already taking fish oil?
No — a current baseline is still valuable for tracking future change, even without a true "before" number.
Does testing first change what product I should buy?
It can — knowing your starting ratio helps inform dose and priority rather than guessing.
How long does testing take?
A simple at-home test with results delivered digitally within a reasonable window.
Do I need to stop taking fish oil to test?
No — you can test at any point in your routine; just note your current supplement use for context.
Where do I start?
Get the free Health Clarity Guide below.