The supplement stack built for you.
Three ways in. Each ends with a clear stack you can buy from iHerb or Amazon in one click.
Answer a few questions about how you sleep, eat, and feel. We match you to evidence-backed ingredients.
Paste what you take today (and your bloodwork) and we score interactions, doses, and gaps, then suggest fixes.
Peer-reviewed studies = randomized trials, meta-analyses and systematic reviews indexed on PubMed across our 200 ingredients (as of June 2026). Each ingredient links to its source search.
A different kind of supplement company
The foundation, done right.
A few proven ingredients cover most people. Each is graded on the research and matched to top, third-party-tested brands. We don't sell our own, so the picks stay honest.
A sample stack for Sarah, 34.
Mid-energy days, trains four times a week, sleeps lightly. Here's what suppdoc.io recommended.
Three simple steps to a stack that actually fits.
Tell us about you.
Two minutes on how you sleep, train, and feel. No jargon, no signup.
We match the evidence.
Your answers, matched to the published research and clinical dosing behind each ingredient.
Live the ritual.
A morning-to-evening plan with exact doses, timing, and the reason for every pick.
Got questions?
Is this medical advice?+
How do the recommendations work?+
Do I need a subscription?+
What if I don't need supplements?+
Can a beginner use this?+
What supplements shouldn't be taken together?+
What's the best supplement for sleep?+
Are supplements actually worth it, or a waste of money?+
The supplement aisle runs on hype, house brands, and influencer kickbacks. We built SuppDoc as the honest second opinion: every pick graded on the research, linked to its source, matched to products we don't sell, and called out when the evidence is weak.