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  1. Low muscle mass at least 2X more likely if low Vitamin D (Korea, all ages) – Dec 2020
  2. Less COVID-19 infection, mortality in countries with higher Vitamin D (Asia in this case) – May 2021
  3. Senior Korean women have much less vitamin D than men (possible reasons) Jan 2014
  4. 1 in 10 Chinese adults are diabetics and 15 percent prediabetic - Mar 2010
  5. 20 X more Parkinson's and 100X more Autism with GMO soy in China
  6. 2000 IU vitamin D not enough to get most Chinese to 20 ng level – RCT Feb 2015
  7. 9X increase in Koreans seeking help with vitamin D deficiency in just 4 years – Jan 2015
  8. Asthma 3.7X higher risk of poor Vitamin D Receptor (teens in Taiwan in this case) – Nov 2019
  9. Avoiding the sun (and vitamin D) – most Chinese medical students do not want darker skins – Feb 2015
  10. Beijing extremely vitamin D deficient even in the fall: 10 ng – April 2013
  11. Beijing women have low vitamin D - 89 percent have less than 20 ng - June 2015
  12. Bones need at least 30 nanograms of Vitamin D – 2 medical groups in Japan – April 2017
  13. Child movement disorders reduced in 1 week by Vitamin D injection (China) – Oct 2019
  14. Chinese COVID-19 study – 80 pct of severe cases had low Vitamin D, all asymptomatic cases had OK Vit D – Oct 13, 2020
  15. Chinese have very low vitamin D - July 2013
  16. Chinese Skin Pigmentation Types (original in Chinese) - 2019
  17. Chinese women in tropics needed 50,000 IU of Vitamin D monthly to keep above 30 ng – RCT May 2017
  18. Comparison of Vitamin D supplementation guidelines for children – China 400 IU 2012
  19. Ethnicity and low vitamin D levels during pregnancy – Jan 2016
  20. Every single Taekwondo (indoor) Korean teen had low Vitamin D – Sept 2019
  21. Half of Chinese adolescents have less than 20 ng of VItamin D - Oct 2020
  22. Half of Tianjin China had less than sufficient vitamin D (IoM of 20-50 ng) - June 2018
  23. Higher Vitamin D in US seniors if older, female, not smoke, but LOWER for each in China – Dec 2019
  24. Hypothesis – China air conditioning disease is the result of less vitamin D – March 2011
  25. Indonesian women – 95 percent do not have sufficient Vitamin D – Nov 2017
  26. Japanese men eating small fish were 32 percent less likely to get diabetes – Aug 2011
  27. Japanese recommendations without RDA: Vitamin D about 200 IU, Vitamin K about 60 ug– May 2013
  28. Japanese women 20X more likely to be vitamin D deficient than men, etc. – Many 2013
  29. Low D in developing countries – less than 5 ng in some children in China – Oct 2010
  30. Low levels of vitamin D in Japanese office workers – July 2011
  31. Low Vitamin D if low UV (Pregnant Japanese, 2012) – March 2019
  32. Low vitamin D in yet another sunny country-Thailand - March 2015
  33. Lower Respiratory Tract Infection in Infants reduced 5.9 X by daily 600 IU of vitamin D (China) - March 2020
  34. Malay women 14 X more likely to be Vitamin D deficient than Chinese in Malay – July 2017
  35. Need 460 IU of vitamin D to get half of young Japanese women to even 20 ng level – Nov 2017
  36. New cognitive problems 3 times more likely in Chinese elderly having low vitamin D – July 2016
  37. One third of lung disease patients in China had less than 4ng of vitamin D – May 2012
  38. Pregnant Malays near equator are vitamin D deficient (9 in 10 have less than 20 ng) – Sept 2018
  39. Race changes the risk of various health problems, but many questions remain – Sept 2018
  40. Rickets in Chinese - Oct 2012
  41. South Koreans - half take supplements, Vitamin D levels dropping, COVID-19
  42. Supplement usage - US 50 percent, China 0.7 percent - 2018
  43. Virtually all Chinese teens at 30 degree N have less than 30 ng of vitamin D – Feb 2012
  44. Vitamin D deficiency in China – only 1 in 18 have even 30 ng, fewer if young or female – Feb 2015
  45. Vitamin D deficiency is a major global public health problem – Maps Nov 2013
  46. Vitamin D DRI for children lowered to 200 IU in Korea – Jan 2013
  47. Vitamin D genes and UVB vary massively across the Eastern Hemisphere – March 2020
  48. Vitamin D higher and diabetes lower among rural senior Koreans – Dec 2014
  49. Vitamin D in Japanese women: 91 percent have less than 30 ng– 2012
  50. Vitamin D levels continue to fall in Korea– June 2018

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