2 doctors weighed in:

I want to increase my height my age is 21 height current 5'9" weight 69?

2 doctors weighed in
Dr. Robert Kwok
Pediatrics
1 doctor agrees

In brief: Height is done by 21

Most people reach their maximum height in their late teens.
Without nutritional problems or chronic childhood illnesses, height is largely based on genetics and parental heights. Aside from eating right, exercising, sleeping well, and being happy, there's not much a person nor his doctor can do to increase height. In rare cases, growth hormone is approved for use in younger, extremely short kids.

In brief: Height is done by 21

Most people reach their maximum height in their late teens.
Without nutritional problems or chronic childhood illnesses, height is largely based on genetics and parental heights. Aside from eating right, exercising, sleeping well, and being happy, there's not much a person nor his doctor can do to increase height. In rare cases, growth hormone is approved for use in younger, extremely short kids.
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