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Evidence-graded supplement reports

If you're already taking supplements,
are you taking the right ones?

Advice from the people who don't sell supplements.

A personalised supplement plan built from peer-reviewed evidence: the right compounds, in the forms your body absorbs, at the doses the research supports, matched to your goals, health, medications, and diet.

Personalised· Evidence-graded· Every dose cited· No affiliates· £49 one-time

For most people, supplements are a recurring monthly cost, and much of it goes on things that don't do much. A Distil report is £79 once, or £49 founder pricing while we earn our first reviews.

Founder pricing · £49 while we earn our first reviews, or returning within 6 months · £79 standard.  Or try the free checker →

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Nine dimensions.
One report that fits no one else.

48 intake questions · 105 compounds assessed · your profile only

Before recommending a single compound, Distil maps your complete picture. Two people can need the same compound (Vitamin D3, for example) at very different doses: what suits a 25-year-old in Edinburgh may be wrong for a 48-year-old in London. Every variable in your profile shifts the analysis. Your result is a supplement stack that could only have been built for you.

01
Goals & priorities
You rank your goals in order. Energy before cognition, sleep before longevity. Compounds compete for finite stack slots; ranking decides who wins.
32 goal categories
02
Age & biological sex
Hormonal context, lifecycle stage, and the research populations that actually match you. Premenopausal iron needs differ from post-menopausal. Testosterone-adjacent compounds shift by sex.
Lifecycle-adjusted
03
Health conditions
Some compounds are contraindicated in certain conditions. Some are more valuable. Every safety gate is checked before a compound earns a place in your stack.
Safety screening
04
Medications
Drug-nutrient interactions are real, often overlooked, and occasionally serious. St John's Wort, high-dose fish oil, magnesium with thyroid medication: all checked against your list.
Drug interaction screen
05
Dietary intake
15 questions map your dietary baseline. If you eat oily fish twice a week, omega-3 moves down the priority list. If you eat no meat, B12 moves up. Gaps are identified; surpluses are respected.
15 dietary questions
06
Sleep & stress
Chronic poor sleep changes what the evidence supports. Compounds that address HPA axis dysregulation, cortisol, and sleep architecture are scored higher when the data warrants it.
Recovery context
07
Exercise & activity
Demand changes with output. Creatine is relevant at a different dose and priority for someone training four days a week versus someone largely sedentary. The evidence reflects this.
Demand-adjusted
08
Location & sun exposure
UK latitude above 51.5° means negligible UVB for Vitamin D synthesis from October through April. Where you live and how much time you spend outside directly determines your D3 requirement.
UV latitude model
09
Existing supplements
Every supplement you already take is assessed: keep, drop, adjust the dose, or switch to a better form. Your stack is checked for overlap, wasted spend, and gaps against everything you already take.
Full review included

We don't rely on reputation.
We check the evidence.

Most supplement brands start with a product, then find studies to support it. We start with the evidence and ask whether it is strong enough to recommend. The majority of compounds don't make it through.

01

Every compound graded by the strength of its evidence

105 evidence-qualified compounds

Our compound database holds 105 supplements with sufficient human clinical trial evidence to consider responsibly. Thousands more exist on the UK market: most are backed only by animal studies, in vitro research, or manufacturer-funded trials with no replication. Some address deficiencies that are genuinely rare in a well-nourished adult. Grade A means multiple independent RCTs with consistent human outcomes. Grade B means at least one well-designed trial with strong mechanistic support. Grade C means preliminary evidence only: these appear in the Optimise tier, never as Foundation recommendations. Grade D is never recommended. The database is not fixed. We review it continuously and add compounds as the human evidence arrives, dropping any that no longer hold up, so a future report reflects the current science rather than a saved copy of your last one.

02

Two people with the same goals need different compounds

48 intake questions across 9 dimensions

The same goal does not produce the same stack. Someone on SSRIs cannot take 5-HTP: a hard exclusion, not a footnote. Someone with a cardiovascular history gets every cardiac-adjacent compound scored against a different risk backdrop. Medications, conditions, diet, bloodwork, sleep, existing supplements: all of it shifts what gets recommended, at what dose, in what order. Your goals are one input. Your full profile is the report.

03

Every report is independently checked before it reaches you

100% QC-checked, every report

After your report is generated, it goes through a second independent review before it reaches you. A separate system, with no knowledge of why each compound was chosen, runs through a structured safety checklist: drug interactions, hard contraindications, high-dose warnings, language flags. Its only job is to ask whether the recommendations are safe. If anything fails, the report is held for a human to review. It never delivers unchecked. This two-stage pipeline is not standard practice. We built it because a single-pass system is not good enough.

105
Evidence-qualified compounds
Thousands of supplements on the UK market. 105 with sufficient human clinical trial evidence to recommend responsibly.
100%
Independently QC-checked
After generation, a second independent model reviews every report against a full safety checklist. If anything fails, it is held for manual review. It never delivers unchecked.
48
Intake questions, 9 dimensions
Goals, health history, medications, diet, lifestyle, bloodwork, sleep, existing supplements. Every dimension shifts the compound selection.

"The same information a specialist would use: now yours."

The Distil principle

Compounds with reasons.
Doses with evidence.

£49 Founder price

£79 standard · £49 founder pricing, or returning within 6 months

One-time. No subscription. No upsells. Nine sections: recommended stack, dietary baseline, interactions check, daily timing, introduction schedule, sourcing, reassessment framework, sleep analysis, and evidence references. Delivered as a hosted web page and downloadable file, most reports within the hour, allow up to 24 hours during busy periods.

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