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Marmite XO Yeast Extract

Marmite Extra Old Yeast Extract Spread Fortified with B Vitamins

Ingredients

Yeast extract (contains BARLEY, WHEAT, OAT, RYE), salt, vitamins (thiamin, riboflavin, niacin, vitamin B12 and folic acid), natural flavourings (contain CELERY), onion juice concentrate

Worth a closer look

  • Yeast extract (contains BARLEY, WHEAT, OAT, RYE)Doubtful: depends on source. Yeast extract: Derived from animal or plant sources without verification

The rest match nothing on our list of ingredients to check. That is not a certification.

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Last checked 1 October 2026.