3 ms·

Compare Chinese and Indian myopia frequencies. One country loves fish the other is mostly vegetarian.

• FollowingTheDao 1y ago
  Both of these cultures are genetically adapted to the foods they need. So comparing these populations will not reveal anything about myopia in certain populations.
  • whatever1 1y ago
    Why? Who died of Myopia and did not pass their gene to the next gen ?
    • gs17 1y ago
      You wouldn't die "of myopia", you would die because myopia means you didn't see things that might be hazardous.
    • FollowingTheDao 1y ago
      I’m sorry you’re missing my point. If a culture grows up eating a lot of long chain poly unsaturated fatty acids, and then suddenly they stop, then the myopia develops. In populations that depend on a very heavy vegetarian diet, which is comprise primarily of shortchange, polyunsaturated fatty acids, they might have other issues not related to myopia when they go off of their traditional diet. Myopia in my opinion is a result of the industrialization of food.
• amai 1y ago
  Is that a joke? The myopia rate in China is much higher than in India: China's myopia rate is 31%: 400 million of its 1.3 billion people are myopic. The prevalence of myopia in high school in China is 77%, and in college is more than 80%. A study indicated that the prevalence of myopia among urban children in India of aged 5 to 15 increased from 4.44% in 1999 to 21.15% in 2019. See https://en.m.wikipedia.org/wiki/Myopia https://en.m.wikipedia.org/wiki/Myopia
  • whatever1 1y ago
    Who said the opposite? Check also the fish consumption per capita. In China it’s over 30kg per year and in India around 6kg per year. If anything, less fish seems better for the eyes. And with an N of over 2B.