I've seen about the internet, people in various diet tribes pushing specific diets and supplements to prevent Covid-19 from getting you. The fact is no diet, supplement or nutrient will (likely) save you. But the fact is those most at risk are people who made a lifetime of bad dietary and lifestyle choices. Metabolic disease (obesity, visceral fat, and diabetes), CVD, hypertension, and smoking are all underlying health/lifestyle problems or comorbidities that increase mortality if you become infected with SARS-COV-2. While there may not be anything that you can do in the near term to flatten the curve via diet and lifestyle, long term you can help reduce you exposure to diseases like this by making mindful choices. Reducing junk carbohydrates and junk fats, eating real nutrient dense food and learning to cook for yourself are all great ways to make yourself healthier and more resistant to disease. Both metabolic and infectious.
"Low testosterone levels are linked to a higher risk of heart disease, diabetes, and Alzheimer's disease." While I wouldn't call 40% fat high (since the maximum upper limit of human protein intake is <40%, hence how wolves became domesticated and how lean meat "rabbit starvation" occurs¹,²). Really this study is based on a 40/30/30ish inverted zone diet. Increased saturated fats (followed by mono), decreased polyunsaturated (Omega-6) fats (seed oils, especially oxidized fried foods), omnivorous diet, decreased carbs are all beneficial to male (and female) hormones (including insulin/glucagon and sex hormones) and thus weight and athletic performance. Stuff like this really starts to delve into how multifactorial neuro-cardio-metabolic disease is, weighing the pros and cons of chasing one set of metrics at the expense of all others. Medical Xpress: Low fat diets decrease testosterone levels in men. https://medicalxpress.com/news/2021-04-fat-