slow-carb fish eaters less prone to severe covid

 2021.9.15: health/immunity/covid-19/diet/
slow-carb fish eaters less prone to severe covid:

Jordi Merino, PhD:

https://www.sciencedaily.com/releases/2021/09/210908180530.htm

"Our models estimate that nearly a 

third of COVID-19 cases would have

been prevented if one of two exposures

-- [uhealthy] diet or deprivation -- 

were not present." 

gut 2021:

https://pubmed.ncbi.nlm.nih.gov/34489306/

Diet quality and risk and severity of COVID-19: 

a prospective cohort study

Jordi Merino, et al.

https://gut.bmj.com/content/early/2021/09/06/gutjnl-2021-325353

Compared with individuals in the lowest

quartile of the healthy diet score, 

high diet quality was associated with

slightly lower risk of any COVID-19 

(HazardRatio 0.91; 95% CI 0.88 to 0.94) 

and significantly lower risk of severe COVID-19

(HazardRatio 0.59; 95% CI 0.47 to 0.74). 

. along with low diet quality

an additional risk was being exposed to 

socioeconomic deprivation

[low education or low income or underemployment?].

. those with a healthier diet were more likely to be 

older, female, healthcare workers, of lower BMI, 

engage in physical activities ≥5 days/week

and less likely to reside in areas with

higher socioeconomic deprivation.

A diet was seen as healthy if it was

high in whole fruit, vegetable, and seafood,

and had lower levels of fat 

[ especially omega-6 veg oil, 

and corn-fed meat high in omega-6 oil;

but also saturated fats can be inflammatory].

. the study combined 2 scoring systems:

the healthful Plant-Based Diet Index (hPDI)

worth 14..70 points,

gave a low score for any animal product,

even seafood, but said nothing about fat;

and then there was a Diet Quality Score (DQS)

[nutritools.org] worth 5..15 points,

that gave a low score to fat,

but a high score for fatty seafood.

. the hPDI emphasises healthy plant foods, 

such as whole fruits, vegetables, legumes, 

in contrast to sugars and fruit juices.

. and whole grains in contrast to refined flour.

. specifically the hPDI measures low risk for

fatty liver, type 2 diabetes,

and coronary artery disease.

Criteria for best score in DQS:

Fruit ≥2 servings/d

Vegetables ≥ 3 servings/d

Oily Fish 200g/week

Total Fat ≤ 85g/d

Non-Milk-Extrinsic Sugars ≤ 60g/d.