Tag Archives: Immune system

What is Quercetin and Can It Protect You Against COVID?

At first, I couldn’t even spell it! I first heard about quercetin in this interview with Dr. Mark Gordon, and was intrigued that an over-the-counter supplement might help protect against COVID and even colds and flus. But I was a little skeptical, so I decided to do some digging.

I found this widely cited study which concluded that although we can’t say to a certainty that quercetin can protect us from COVID, there is some good evidence for it, especially if taken with vitamin C. What’s more, the risks seem quite low:

Quercetin displays a broad range of antiviral properties which can interfere at multiple steps of pathogen virulence -virus entry, virus replication, protein assembly- and that these therapeutic effects can be augmented by the co-administration of vitamin C. Furthermore, due to their lack of severe side effects and low-costs, we strongly suggest the combined administration of these two compounds for both the prophylaxis and the early treatment of respiratory tract infections, especially including COVID-19 patients.

The study authors are careful to note that this is an “experimental strategy,” and I found another study that questioned whether using quercetin to protect against COVID is well-founded.

That said, given the reasonable cost, low risk, and emerging evidence of efficacy, I decided to order some here. I’ll take it in conjunction with the vitamin C and vitamin D I already take and hope for the best!

If you found this post interesting, please share it on Twitter/LinkedIn/email using the buttons below. This helps more people find the blog!

Why I Just Did a 3 Day Fast

I just completed a 3 day fast this morning. I celebrated by munching on chocolates and having some of my mother-in-law’s outstanding banana bread. It’s a great feeling to have made it!

No, you do not die if you don’t eat for three days. In fact, fasting for 3-5 days can regenerate the immune system. Older cells are eliminated through a process called autophagy, and new ones generated. Fasting also has significant life extension benefits. I also feel a sense of accomplishment and I get a chance to hone my willpower, which is critical in all areas of life.

But aren’t you hungry? Yes, of course you are, sometimes. But that’s okay! You’ll get comfortable with it. I’ve done quarterly 3 day fasts for about 2 years and countless 24 hour fasts. Here are my top tips for coming through your fast comfortably:

1) Supplement electrolytes. You’re as good as your electrolyte supplementation. If your electrolytes are at a good level, you’re comfortable. If they get low, your life sucks until you replenish. The first day, I was beginning to feel a bit run down, but then I supplemented and I felt fine. Often the fatigue is related much more to electrolytes than to actual hunger.

I use a supplement similar to this, but generic (bought at a local store). I recommend 1 liter per day, consumed gradually. The mixed fruit or fruit punch flavors tend to be the best. Some sources recommend starting supplementation after several days, but I find I need it starting right away.

2) Keep busy! The more you do, the less you’ll think about being unable to eat.

3) Enjoy the freedom! You can do more without all the time involved with meal prep, eating, and clean up. I find myself focused and productive during these periods.

What are your experiences with fasting? Maybe you’re considering it and haven’t tried it yet? Leave a comment and let me know.