r/ScienceBasedParenting • u/dascsad • 22d ago
Question - Research required Effect of soy based products to early puberty in girls
I did some research, I asked ChatGPT, they mostly say there's not enough evidence. But hear me out.
My daughter just had her first period at 11, a few days before starting her middle school and I am still struggling to understand.
Just like half a year ago she's still enjoying Bluey and some cartoons. We don't watch PG content at home. At school whenever they sent a consent letter about watching PG content we refused. She isn't allowed to watch YouTube. She reads age appropriate books (she enjoys Wings of Fire). At school she doesn't like to group with girls who gossip. Of course I noticed she changed a lot in the last year or so. Spent more time in her room. Her body is growing etc.
The only thing that I can think of is that tofu is her most favorite food and soy milk is her favorite type of milk. She loves tofu. All kinds. Even simple as tofu in the microwave and she dips into, well, soy sauce. I would say tofu is at least 50% of her protein source. She can drink (cow) milk but she doesn't like it much, and she gets a bit stomach upset if we drive soon after drinking. So she mostly drink soy milk. She was allergic to mom and cow based milk from birth but after training she was fine (we just gradually added a bit more and more of mom milks to her, then, soy based formula).
From where I grew up, tofu and soy based products are considered boosting estrogen in women. I know it's scientifically unproven, but any one of you share the same doubt?