Dietary Amino Acid Deficiency with a Restrictive Raw Vegan Diet: A Case of Orthorexia Nervosa: Lacking Lysine/Methionine Madness

It is often stated that a plant-based diet can lead to protein deficiency, although this has never been reported with a well-balanced vegetarian diet. This case reports the results of a highly restrictive plant-based diet, which led to deficiencies in critical serum proteins with near fatal results. This was easily corrected by broadening the raw vegetarian components of the diet.