I've been discussing omega-3 fats on here more recently, so I wanted to put together a short collection of larger meta-studies on some of their various health benefits

I tried to pick a variety of studies, with as much data in each one as possible, I may add more over time
Omega-3 fats seem to have the most benefits when it comes to reducing chronic inflammation, many mental illnesses like depression, ADHD, and schizophrenia, promoting gut/microbiome health, and preventing neurodegenerative diseases like Alzheimers and dementia
Interestingly, evidence for improvement with cardiovascular disease is more variable than many other issues, though there are many promising studies

The majority of studies with omega-3 fats and cancer seem to generally show benefit, but this also varies in a few studies
Keep in mind that the majority of these studies are done with fish oils rather than whole seafood

Personally I believe that with this taken into account we will likely see much more benefit to health issues using whole seafood as it's PUFA are less likely to be oxidized
Omega-3 fatty acids and the treatment of depression: a review of scientific evidence
https://t.co/O5vnMDhKlt
Effects of Omega-3 Fatty Acids on Immune Cells
https://t.co/8OTtbyj43M
Polyunsaturated Fatty Acids: What is Their Role in Treatment of Psychiatric Disorders?
https://t.co/88vBXRrpdO
Cardiovascular, electrophysiologic, and hematologic effects of omega-3 fatty acids beyond reducing hypertriglyceridemia: as it pertains to the recently published REDUCE-IT trial
https://t.co/QvvrQ3zXuo
Omega-3 Fatty Acids and Neurodegenerative Diseases: New Evidence in Clinical Trials
https://t.co/v3JkTU5NgM\
Omega‐3 fatty acids for the primary and secondary prevention of cardiovascular disease
https://t.co/lvXTQjTrhM
Beneficial effects of omega-3 fatty acid supplementation in schizophrenia: possible mechanisms
https://t.co/ijdAfEhOXF
The Effect of Omega-3 Fatty Acids on Rheumatoid Arthritis
https://t.co/neeGuXZr6l
Protective Effects of Omega-3 Fatty Acids in Cancer-Related Complications
https://t.co/rV8uU0dlWu
Association of dietary ω-3 and ω-6 fatty acids intake with cognitive performance in older adults: National Health and nutrition examination Survey (NHANES) 2011–2014
https://t.co/dYkts7Ieq4
Novel insights into the effect of vitamin B12 and omega-3 fatty acids on brain function
https://t.co/bIxXStNDMZ
Dietary Supplementation with Anti-Inflammatory Omega-3 Fatty Acids for Cardiovascular Protection: Help or Hoax?
https://t.co/0qhUC7uRwb
Omega-3 Fatty Acid and Nutrient Deficits in Adverse Neurodevelopment and Childhood Behaviors
https://t.co/bacwhTDSGq
Role of dietary fatty acids in microglial polarization in Alzheimer’s disease
https://t.co/JhxpPa1Hz1
Impact of Omega-3 Fatty Acids on the Gut Microbiota
https://t.co/RZbxhVOl6q

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@mugecevik is an excellent scientist and a responsible professional. She likely read the paper more carefully than most. She grasped some of its strengths and weaknesses that are not apparent from a cursory glance. Below, I will mention a few points some may have missed.
1/


The paper does NOT evaluate the effect of school closures. Instead it conflates all ‘educational settings' into a single category, which includes universities.
2/

The paper primarily evaluates data from March and April 2020. The article is not particularly clear about this limitation, but the information can be found in the hefty supplementary material.
3/


The authors applied four different regression methods (some fancier than others) to the same data. The outcomes of the different regression models are correlated (enough to reach statistical significance), but they vary a lot. (heat map on the right below).
4/


The effect of individual interventions is extremely difficult to disentangle as the authors stress themselves. There is a very large number of interventions considered and the model was run on 49 countries and 26 US States (and not >200 countries).
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