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Supplement comparison tool
Pick up to 4 knowledge base entries and compare their dosage, price, evidence strength and ratings side by side — you can save or share a link to your selection.
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| Category | Suplementy | Suplementy |
| Evidence strength | Strong evidence | Strong evidence |
| Evidence Score | 5/5 | 5/5 |
| User rating | 4.9 (1042) | 4.8 (612) |
| Typical dose | 1000–4000 IU/day in healthy adults (target dose depends on baseline 25(OH)D level) | 3–5 g per day (maintenance phase); optional loading phase of 20 g/day for 5–7 days |
| Form | Cholecalciferol (D3), preferably taken with fat or vitamin K2 | Creatine monohydrate (the best-studied form) |
| Average price | 15–35 zł za opakowanie kropli/kapsułek na 2–3 miesiące | 40–70 zł za 500 g monohydratu (ok. 100 porcji po 5 g) |
| Monthly cost | ok. 8–15 zł/miesiąc | ok. 15–25 zł/miesiąc |
| Time to effects | 25(OH)D blood levels rise noticeably after 6–8 weeks of regular supplementation; subjective effects (energy, immunity) are sometimes reported earlier, but are harder to measure objectively. | First strength effects after 1–2 weeks; full muscle saturation and maximum effect after about 3–4 weeks of regular use. |
| Who it's for | Practically the entire population of Poland during autumn and winter | People doing resistance training and high-intensity sports |