Sunflower

What the research shows

Prototype

Conflicting

studies in people disagree or haven’t settled it

3 health findings on this page · See the findings

A flowering plant in the daisy family.

It is grown as a food crop for humans, cattle, and poultry.

Written from English Wikipedia1

What research says

Studies in people

  • No harm found

    Seed allergy test results2

    In children, most with positive sunflower seed tests had no reaction when they ate it in supervised tests.

  • Concern

    Seed allergy reactions3

    Some people reacted badly to eating sunflower seed, and symptoms varied each time they ate it.

Animal and lab studies only

  • No harm found

    Food poisoning risk7

    In lab studies, roasting sunflower seeds long enough killed the Salmonella, so the finished snack should not make people sick.

Study type not stated

  • Open question

    Daily fat needs5

    Sunflower oil alone cannot give you all the fats your body needs, so scientists suggest mixing it with other oils.

  • Concern

    Cadmium in food6

    Sunflower seeds grown in contaminated soil can hold cadmium, and washing them does not remove it.

How it’s made and used

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 two findings in people. 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 12,433 products on Open Food Facts that list sunflower.

  • Muesli bio 36% fruits, noix & graines Jordans · 500 g 0 additives
  • Sliced White Sourdough Bread with Grains & Seeds Ciabattin Jason's · 580 g 0 additives
  • Protein Nut Bar Fruit & Chocolate Nature Valley · 160 g 4 additives
  • Pringles Original Pringles · 40 g 2 additives
  • Seeded Sourdough Bread Specially Selected · 500 g 0 additives
  • Organic Bread 21 Whole Grains and Seeds Dave's Killer Bread · 765 g 0 additives

References

  1. 1Helianthus. Wikipedia. Accessed September 26, 2026.
  2. 2Shah A, Patel N, Dehbozorgi S, Cox AL, Baker MG. Sunflower Seed Allergy: Natural History, Oral Food Challenge Outcomes, and Review of the Literature. J Allergy Clin Immunol Pract. 2026;14(7):1644-1651. doi:10.1016/j.jaip.2026.03.032
  3. 3Galleani C, Diéguez MC, Cabanillas B, Martín-Arriscado Arroba C, Enríquez-Matas A, Crespo JF. Sunflower (Helianthus annuus) Seed Allergy. J Investig Allergol Clin Immunol. 2025;35(1):32-39. doi:10.18176/jiaci.0965
  4. 4Tessier R, Calvez J, Airinei G, et al. The True Amino Acid Digestibility of 15N-Labelled Sunflower Biscuits Determined with Ileal Balance and Dual Isotope Methods in Healthy Humans. J Nutr. 2022;152(3):698-706. doi:10.1093/jn/nxab423
  5. 5Rabail R, Shabbir MA, Sahar A, Miecznikowski A, Kieliszek M, Aadil RM. An Intricate Review on Nutritional and Analytical Profiling of Coconut, Flaxseed, Olive, and Sunflower Oil Blends. Molecules. 2021;26(23). doi:10.3390/molecules26237187
  6. 6Nguyen C, Loison JP, Motard C, Dauguet S. Cadmium partitioning between hulls and kernels in three sunflower varieties: consequences for food/feed chain safety. Environ Sci Pollut Res Int. 2024;31(1):1674-1680. doi:10.1007/s11356-023-31631-0
  7. 7Kottapalli B, Nguyen SPV, Dawson K, Casulli K, Knockenhauer C, Schaffner DW. Evaluating the Risk of Salmonellosis from Dry Roasted Sunflower Seeds. J Food Prot. 2020;83(1):17-27. doi:10.4315/0362-028X.JFP-19-171