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Pak choi

What the research shows

Not enough

published research on this page yet

A type of Chinese cabbage.12

What research says

Found in some samples or products

These come from where it was grown, how it was processed or cooked, or what it was made into. They are not about the ingredient itself, so the signal does not count them.

  • Heavy metals in vegetables3

    In city greenhouses in Xi'an, pak choi and soil often contained cadmium and chromium, which may pose health risks.

  • Antibiotics in leafy greens4

    Pak choi can take up antibiotics from soil, and some types build up more than others.

  • Gut health5

    In lab studies, PCNB, a fungicide taken up by pak choi, damaged human intestinal cells.

The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least one finding in people. When most findings in people point one way, the page leans that way (“Mostly”), and every finding is still shown. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.

Products

The 6 most-scanned of 188 products on Open Food Facts that list pak choi.

  • SHIN RAMYUN kpoptészta NONGSHIM · 120 g 9 additives
  • Buldak Spicy Ramen Samyang · 135 g 12 additives
  • Fresh Noodles Japanese Teriyaki BOL · 345 g 2 additives
  • Shin Kimchi Noodles Nongshim · 75 g 12 additives
  • TERIYAKI CHICKEN BOWL TRADER JOE'S · 11.25 oz 0 additives
  • Gourmet Noodle Soup 6 additives

References

  1. 1pak choi: ingredient taxonomy entry. Open Food Facts.
  2. 2Chinese cabbage. Wikipedia. Accessed September 30, 2026. CC BY-SA 4.0.
  3. 3Guo J, Zhang Y, Liu W, et al. Incorporating in vitro bioaccessibility into human health risk assessment of heavy metals and metalloid (As) in soil and pak choi (Brassica chinensis L.) from greenhouse vegetable production fields in a megacity in Northwest China. Food Chem. 2022;373(Pt B):131488. doi:10.1016/j.foodchem.2021.131488
  4. 4Yu X, Liu X, Liu H, Chen J, Sun Y. The accumulation and distribution of five antibiotics from soil in 12 cultivars of pak choi. Environ Pollut. 2019;254(Pt B):113115. doi:10.1016/j.envpol.2019.113115
  5. 5Li M, Xu G, Yu R, Wang Y, Yu Y. Uptake and accumulation of pentachloronitrobenzene in pak choi and the human health risk. Environ Geochem Health. 2020;42(1):109-120. doi:10.1007/s10653-019-00305-7