Track your supplements.
See if they actually work.
Log creatine, omega-3, magnesium, vitamin D, ashwagandha, and any other supplement. tr8ck's AI correlates what you take with your energy, mood, sleep quality, and workout performance.
Start tracking free →No credit card · No trial · Just free
Stop guessing which supplements are working
You spend real money on supplements. But without systematic tracking, you're relying on vibes to know if they're helping. tr8ck gives you actual data — your own health outcomes correlated with your supplement intake.
- ✓Log supplement name, dose, and timing (with food, fasted, pre-workout, bedtime)
- ✓See your full daily stack at a glance — everything taken today
- ✓Build adherence streaks to track consistency for each supplement
- ✓AI correlates each supplement with energy, mood, sleep, and workouts
- ✓Get answers to "is this working?" after 3–4 weeks of consistent logging
How tr8ck tracks your supplements
Setup takes 2 minutes. Meaningful AI correlations emerge after 3–4 weeks of consistent daily logging.
Search any supplement by name or add a custom one. Set the dose, frequency, and timing context — with food, fasted, pre-workout, or bedtime. Add as many as you want.
Each day, tap to confirm each supplement taken. Swipe to skip if you missed one. The stack view shows everything at a glance — what's done, what's pending, what you skipped.
After 3–4 weeks, tr8ck surfaces correlations: does creatine boost your workout scores? Does magnesium cut sleep onset time? Does ashwagandha lower your stress ratings?
Log when you take it, not just what you take
Supplement timing significantly affects how well they work. tr8ck tracks timing context for every supplement entry — and uses that timing data in its AI correlations to surface more accurate insights.
With food
Fat-soluble vitamins (D, K, A, E) and omega-3 absorb best with meals. tr8ck tracks your meal-relative timing.
Fasted
Some supplements like NAC, berberine, and certain adaptogens work better on an empty stomach.
Pre-workout
Creatine, caffeine, beta-alanine. Track pre-workout supplement timing against your actual performance ratings.
Bedtime
Magnesium, melatonin, glycine, ashwagandha. Track bedtime supplements against your sleep onset time and quality scores.
AI reveals what supplements do to your body
Real correlations from your own data — not just what the label claims or what studies found on average populations.
"Your creatine intake correlates with +12% better workout performance." — The AI compares your exercise performance ratings on creatine days vs. non-creatine days, controlling for sleep and rest days.
"Magnesium at night reduces sleep onset time by 18 min." — tr8ck tracks how long it takes you to fall asleep alongside your bedtime supplement log, surfacing which supplements genuinely improve your sleep.
"Vitamin D correlates with better mood scores on sunny days." — The AI factors in sun exposure and vitamin D supplementation together to see whether supplementation boosts your mood independent of natural sunlight.
"Your afternoon energy dip is 40% less severe on days you take B12 at breakfast." — tr8ck tracks your energy at multiple points through the day, correlating it with morning supplement timing.
"Your ashwagandha shows no measurable effect after 3 weeks." — Just as important as finding what works is identifying what doesn't. tr8ck flags supplements with no detectable correlation so you can decide whether to continue.
"Sleep quality improves most on nights you take both magnesium AND avoid caffeine after 2pm." — tr8ck looks at supplement combinations and lifestyle factors together to find what actually drives your best outcomes.
Frequently asked questions
tr8ck is the best app to track supplements and vitamins because it doesn't just log what you take — it tells you whether it's actually working. You log each supplement with dose and timing, and tr8ck correlates your supplement intake with sleep quality, mood scores, energy levels, and workout performance over time. This answers the question most supplement users have: "Is this doing anything for me?" tr8ck works for omega-3, creatine, magnesium, vitamin D, vitamin B12, zinc, collagen, ashwagandha, probiotics, CoQ10, turmeric, melatonin, and any custom supplement.
tr8ck's AI answers this by correlating your supplement intake data with your daily health metrics. After 3–4 weeks of consistent logging, tr8ck can surface insights like: "On days you take creatine, your workout performance rating is 12% higher" or "Magnesium at night reduces your sleep onset time by 18 minutes on average." These correlations are based on your personal data, not just population studies, so they reflect your individual biochemistry.
Yes — tr8ck tracks not just which supplements you take but when and relative to meals. You can log supplements as taken with food, fasted, pre-workout, with coffee, or at bedtime. This timing data matters because many supplements have significantly different effects based on when they're taken — magnesium works better at night, vitamin D is best absorbed with fat-containing meals, and some adaptogens work better on an empty stomach. tr8ck's AI accounts for timing in its correlations.
Yes — tr8ck uses the same tracking framework for both supplements and prescription medications. You can log your magnesium, omega-3, and vitamin D alongside sertraline or lisinopril in one unified log. The AI analyzes everything together, which can surface important combined effects — for example, whether your magnesium supplement helps offset sleep disruption caused by a medication, or whether your ashwagandha correlates with reduced anxiety alongside your treatment.
tr8ck connects your supplement log to your workout ratings and energy scores. After each workout, you rate your performance (1–10). Over time, tr8ck identifies whether days when you took creatine, beta-alanine, or protein powder correlate with higher performance scores. It also factors in sleep, nutrition, and rest days to isolate the supplement signal from other variables. Users typically see meaningful correlations emerge after 3–4 weeks of consistent tracking.
tr8ck supports tracking any supplement — it's fully customizable. Common supplements tracked include: creatine monohydrate, omega-3 / fish oil, magnesium (glycinate, citrate, oxide), vitamin D3, vitamin B12, zinc, collagen peptides, ashwagandha, probiotics, protein powder, CoQ10, turmeric / curcumin, melatonin, NAC, lion's mane, berberine, and any custom supplement you add by name. Each supplement has its own dose log, timing record, and AI correlation analysis.
Explore related tracking
Find out which supplements actually work for you.
Stop spending money on guesswork. Log your stack and tr8ck tells you exactly what's moving the needle — and what isn't.
Start free →No credit card · No trial · Just free