Great so I'm f***** then.... Is the damage done by pre teen poor nutrition reverseable?
It depends.
I suffered joint damage due to malnutrition when I was an infant. It haunted me for years. I have permanent reduction in mobility of a couple joints due to it.
deficiencies dont just manifest in acute symptoms out of no where. There is usually a slow and gradual deterioration over months or years.
Cardiovascular disease is a perfect example. Its almost totally preventable and reversible but is the worlds #1 killer. People who dont address the underlying nutritional deficiencies WILL get cardiovascular disease. Some have heart attacks, bypasses etc in their early 40's others in their 60's but its all because of a life long nutritional deficit.