
Teenage girls who avoid meat in favour of a plant-based diet are at higher risk of developing an iron deficiency, according to our latest research.
Our study confirmed that iron deficiency is common among teenage girls, with 38% of participants affected. We also found that risk of iron deficiency was strongly associated with both eating patterns and menstrual blood loss. Girls who reported heavy periods and followed a meat-restricted diet – meaning they were vegetarian, vegan, pescatarian or avoided red meat – had by far the highest risk of developing iron deficiency. We found that nearly 70% of vegans and vegetarians had iron deficiency.