Just an anecdote, my mom went vegetarian consisting mostly of soy products (tofu and the like) for about a decade during which her the amount of blood she menst

Just an anecdote, my mom went vegetarian consisting mostly of soy products (tofu and the like) for about a decade during which her the amount of blood she menstruated went sky high in terms of volume. She dropped the whole diet but the menstruation problem still remained until a doctor found she had a tumor in her uterus which meant she had to get a hysterectomy. I'm not sure if the soy estrogens promoted growth in the tumor (thus the excess menstrual blood problem) so I'm very cautious about eating unprocessed/untreated soy products because of that one incident.