HealthStylz
Flat lay of lemon, ginger, and supplements on a marble surface, illustrating natural remedies

Supplements

18 supplements, in plain words.

What each one is for, how much you need, what most pills contain, and how well it has been tested.

Photo: Nataliya Vaitkevich
  1. 01 AshwagandhaStress and sleep support Few studies so far 1.3kreaders a day
  2. 02 CreatineStrength and power in short intense exercise Some good studies 1.2kreaders a day
  3. 03 TurmericJoint pain relief (early evidence) Some good studies 1.0kreaders a day
  4. 04 Vitamin B12Red blood cells and nerve function Some good studies 879readers a day
  5. 05 Vitamin CCollagen production and antioxidant defense Some good studies 700readers a day
  6. 06 Vitamin DBone health and calcium absorption Well studied 615readers a day
  7. 07 CollagenSkin hydration and elasticity (limited evidence) Some good studies 533readers a day
  8. 08 MelatoninJet lag and delayed sleep timing Some good studies 514readers a day
  9. 09 FolateCell growth and preventing neural tube defects Well studied 391readers a day
  10. 10 L-theanineStress, anxiety and sleep support Few studies so far 337readers a day
  11. 11 BerberineBlood sugar and cholesterol support Few studies so far 307readers a day
  12. 12 CoQ10Cell energy; studied for heart conditions Some good studies 286readers a day
  13. 13 Omega-3Heart, brain and eye health support Well studied 238readers a day
  14. 14 ElderberryCold and flu symptom relief (early evidence) Few studies so far 207readers a day
  15. 15 ProbioticsGut health and preventing antibiotic diarrhea Well studied 191readers a day
  16. 16 IronOxygen transport and preventing anemia Well studied 63readers a day
  17. 17 MagnesiumMuscle and nerve function, blood sugar control Some good studies 56readers a day
  18. 18 ZincImmune function and wound healing Well studied 32readers a day

For the curious: popular vs proven, in 3D

Ashwagandha gets 48 readers a day per trial. Vitamin D gets 0.21.

Ashwagandha has 1,303 Wikipedia readers a day and 27 randomized trials. Vitamin D, the best-tested supplement here, has 2,930 trials. Drag the cube to see which ones are catching up.

101001.0k10k1101001.0k10k Wikipedia readers per day (log) → ↑ Randomized trials (log)Vitamin DMagnesiumCreatineOmega-3CollagenAshwagandhaMelatoninProbioticsTurmericBerberineZincVitamin B12Vitamin CL-theanineIronFolateElderberryCoQ10

Left to right more people readingBottom to top more studiesFront to back studies growing faster

Studies: PubMed count of randomized controlled trials that mention the supplement (October 2026). Readers: Wikipedia, live. More readers per study means more talk than testing, not that a supplement fails.

How much is enough, for all of them

A typical pill holds 1.7x the daily need

Vitamin B12 runs furthest past its RDA, at 208x; no upper limit is set for it.

1 mcg10 mcg100 mcg1 mg10 mg100 mg1 g10 g Vitamin B12 208x Vitamin D 3.3x Vitamin C 2.7x Zinc 1.7x Iron 1.0x Folate 1.0x Magnesium 1.0x
Daily need (RDA or AI)Typical pillUpper limit

Source: NIH Office of Dietary Supplements fact sheets (adult daily need and safe upper limit) and the typical pill dose each fact sheet or study describes. Vitamin D: 40 IU = 1 mcg. Magnesium's safe max counts pills only, not food.