Preterm births: now 12%, had been 8% (Vitamin D crash etc.)
Now 12% from 8% in 50 years Claude AI - Sept 2026
Vitamin D levels have been crashing
- Fewer preemies if higher Vitamin D
- Preterm birth rate reduced 60% by Vitamin D (40 ng)
Birth rates are declining: 7 of the top 15 reasons are low Vitamin D
- While in labor, preterm birth delayed 6 days by Vitamin D (single dose of 50,000 IU) - RCT
- Preterm births reduced by Vitamin D - many studies
- Preterm birth rate increased in US but decreased in Finland (high Vitamin D)
Vitamin D recommended to reduce preterm births
- Endocrine Society (2024) recommended Vitamin D to prevent preterm births
- Vitamin D intervention reduces preterm births by 60 percent – Cochrane Reviews
Omega-3 index has also fallen (less Omega-3 and increased Omega-6)
- Omega-3 index of 5 greatly decreases the risk of an early preterm birth
- Preterm birth rate cut in half with 1000 milligrams of Omega-3 (if initially low) – RCT
- Preterm Births decreased by Omega-3 (analysis of 184 countries)
- Omega-6 blocks Omega-3 etc. -many studies
- High levels of Omega-6 cut the benefits of Omega-3 in half
- Omega-3 index - many studies