performance scale a scale that measures a patient's performance status, serving as a prognostic indicator of seriousness of disease or disability. The most widely used scale is the Karnofsky scale.
Foods with high B-6 content include whole grains, whole-grain cereals, liver, bananas, green beans, carrots, chicken, eggs, meat, fish, spinach, walnuts and sunflower seeds. The need for vitamin B-6 increases in proportion to the amount of protein consumed.
Many people say that the only foods which contain vitamin B12 are animal-derived foods. This also is untrue. No foods naturally contain vitamin B12 - neither animal or plant foods. Vitamin B12 is a microbe - a bacteria - it is produced by microorganisms. Vitamin B12 is the only vitamin that contains a trace element - cobalt - which gives this vitamin its chemical name - cobalamin - which is at the centre of its molecular structure.