• Co-enzyme for enzymatic reactions involved in alcohol detoxification, uric acid formation, detoxification of sulphite
  • Key component of enzymes involved in sulfur metabolism
Source and function notes
  • Deficiency causes sulfite toxicity leading to symptoms include tachycardia, headache, disorientation
  • Soil quality and mineral content in food sources a major issue for this mineral
  • Best sources from wholegrains and legumes
Vegetable sources Cauliflower; Green peas; Spinach; Garlic; potatoes; Green beans; carrots; cabbage
Fruit sources Coconut, Cantaloupe melon, apricots, Raisins, Strawberries
Nut and seed sources walnut, almond, wheat germ, coconut, molasses
Other foods Oats
Absorption factors
Deficiency factors Sulfite sensitivity and toxicity

  • due to central role in metabolism of sulphur containing amino acids and sulphites, and enzymes that detoxify sulphites
  • needed for enzyme sulfite oxidase and sulfite conversion (for excretion)
Toxicity and dangers Balanced intake – excess inhibits liver (detoxification) sulfation pathway

Adapted from:

Murray, M. (2005). Encyclopedia of Healing Food. New York, N.Y.: Atria Books

Bland, J., Costarella, L., Levin, B., Liska, D., Lukaczer, D., Schlitz, B., Schmidt, M., Lerman, R., Quinn, S., Jones, D. (2004). Clinical Nutrition: A Functional Approach, Second Edition. Gig Harbor, WA: The Institute for Functional Medicine.

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