yeah, that's it. Old excavations show that 'Peking Man' was of medium hight. It is even said that they were rather short. The Mongolian Skeletons found in North Eastern Russia and northern Mongolia are of average hight. What they say in old history books also confirms this fact.

Northern Chinese from the central plain are actually quite tall. The average height of north eastern China is taller than europeans i believe. i am an asian from hk (with shanghainese blood), and i am 6'1. it's definitely a stereotype that oriental people are short.

look at yao ming

You know Sino Defender, we're talking about the majority. Being a Turkmen who've been quite Asiatic, I'm 183 now... still have got place to grow. But I can't say Central Asians are tall. Mostly average. And you've got to define who is considered tall. Our people are almost around 180 (or at most 185). Any person with a height of more than this amount is called 'suri/uzin' which are informal equivalents for 'tall'.

You have to also consider that the diet in the old days was different to that of today and diet makes a big difference.  If you want heights for medieval Mongols, then the best thing to do is look at the nomadic Mongols who still live the same style of life as the old days.

The Japanese have increased greatly in height over the last 50 years because of the change in their diet, the same with Chinese, moer people have access to good quality meat, instead of just rice and other low protein agricultural products.

My dad is only 165cm tall, but I am 193 - he had a much tougher life as a child than I did and was one of ten children who did not receive the best of everything in 1950s and 60s Iran, all of my other makle cousins are above 185cm.

The diet is definetely important.My father also lived tougher as a child then me.He's 175 cm tall-i'm 192, and my brother is 186.However, my ancestors from my mother's side were quite tall (especially considering the time period)-my grandfather was 187 and his father about 193.Interesting-their life conditions were also rather poor (ww1 and ww2 contribution should be also mentioned).However, they were from the mountainous regions close to montenegro where being tall or extremely tall wasn't anything unusual...

Our nickname is called "Uzunlar" wich means "the tallest" my father side are/where the tallest of their village, my dad whas the shortest of them, he's like 1.80cm im 1.82cm. I had an uncle, he whas above 2meters, his oldest son is 1.97cm and they are living in Turkey. 

According to Carpini the mongols were of medium heigth. Considering that 13th century western europeans stood at an average of 165-170 cm tall I presume the mongols were of the same stature. Then Ruysbroeck writes at the same time that the chinese were shorter than the mongols

Considering the diet's effect on the heigth I wouldn't question it, but I would say genes have a bigger importance on your height. I'm short (172 cm) because many of my ancestors were short, despite all the modern vitamins and proteins I'm shorter than my dad and my father's father's father (born in 1881), who was 176 cm.

My family are northern Chinese, the height of male members are like:my granddad was like 1.75m; my father is 1.75m, while my elder brother is 1.89m and im 1.76 as well; my uncle is 1.76, my cousin 1.85.