Is really being vegetarian affects menstruation and makes the period late ??

Vegetarian/Menses: An association between vegetarian diet and menstrual disorders, it is still not clear if this is due solely to the vegetarian diet or due to the overall inadequate nutrition with decreased proportions of fat and protein in the diet. Hormones are fat soluble therefore if not enough fat is consumed or high estrogen containing foods are (soy/yams) this can affect menses.