Usage examples (35)

• And this leaves just the central core of the haemoglobin called the haem group, which is what's known as a porphyrin ring.
• Other nutritional virtues include the easily absorbed iron known as "haem" iron.
• "Non-haem" iron from plant foods such as baked beans, nuts, seeds and dark green, leafy vegetables is less well absorbed than "haem" iron in meat.
• New York to work with Irving, who had long been interested in the haem question.