We have always done organic milk and hormone free/grassfed/local meats for this reason and she was breastfed, so no formula either. And yet here we are!
Just goes to show that none of these things have any effect on when a kid starts puberty. There are more and more studies out showing that the organic hysteria is really not changing the long term outcome. Onset of puberty is controlled for the mosty part by genetics at this point, becuase we are all getting enough to eat. My DD is almost 10 and just beginning puberty. My mother in Law started puberty as an early 8 year old and had her period by 9 during WWII. So did her sisters. I didn't start until I was almost 14. My sister was almost 13. My DD seems to be splitting the middle and will likely be about 11.
2 things: Baking Soda and Rubbing Alcohol ;0) Both DS and older DD started to have A little BO around age 6. Took them to the doctors and asked ? Was told they were too young for regular Deodorant but to try a cotton ball soaked with alcohol rubbed under the puts right after a bath or shower about twice a week then give a lite daily dusting of Baking Soda. Worked like a charm but DS is now 10 and very very active in sports and out door activities so he has been upgraded to the Tom's natural deodorant. The occasional alcohol rub and baking soda is still working for the older DD though. Itty Bitty is still baby fresh so far at least for now... Lol!
This works becuase the odor is due to bacteria. The alcohol kills them nad the baking soda keeps the mositure that allows them to thrive at bay. MY DD would have horrible excema if we did this though, so for some kids it may be too harsh.
Puberty has nothing to do with body weight. My daughter is under 80 pounds and is starting. I had friends that weren't even 100 pounds when we graduated high school! And the reason that puberty is happening earlier is exactly opposite of eating 'better'. It is due to hormones that are added to beef and chicken.
It is NOT due to hormones. Study after study has shown that the amount of thsoe hormones that pass to the consumer is so low it cannot even be reliably detected. And, there is more and more evidence of families like the above opster who do everything that is supposedly "right" and still go through puberty earlier. The reality is that we are not necessairly eating better but getting more calories more consistently, so there are not the periods of malnutrition that were present in many people even 100 years ago. In general, we don't have to wonder where our next meal is coming form so bodies are free to do what they need to do to develop rather than conserve energy and resorces.
I wouldn't think twice noticing body odour at age 9 either, but it was unexpected at age 6. There is a big difference.
I don't know why? We all stunk at 6 becuase we played outside a sweated. Thats all you need for boby odor. Sweat and heat from your body to culture bacteria. The difference is that nobody bothered to cover it up. We played outside, got dirty and smelly, and got a bath at night. MY DD is a dancer and competitive cheerleader and you can bet she was wearing deodorant at 6-7, otherwise her coach would have passed out trying to spot her! It is just a fact of life with active kids. They sweat, they culture bactreia, and they smell as a result.
I would make an appointment with an endocrinologist. There could be a lot of different reasons for this. They would know the best and you would get definite answers. Good luck
Why? Becuase an active child smells? Going to happen as long as there are bacteria around. Body odor is caused by a bacterial process, nothing more and it doesn't mean anything is "wrong". It is not even always tied to puberty. Some kids are just stinkier than others. It can be as simple as the pH of thier sweat being a little different. Defintitely not a reason to jump the gun and panic without other symptoms to go on.
And as to weights having an effect: My DD just hit 80 lbs and here we are.