Hey! My buddy wants to get his booster jab on the third day of his fast, i tried to look for articles on the topic but actually found nothing whether fasting reduces immune response. Can you link some relevant studies?
This is in mice and, unfortunately, human data is really sparse despite what many think.
https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC7474734/
Even this shows different results based on differing protocols and lengths.
My thoughts are that, until we have good human data, take any vaccines you wish to risk when on a normal diet, and also consider that fasting might not be the best thing to be doing if you get infected with SARS CoV 2. On the one hand,.low blood sugar is a definite plus, but it’s possible that other immune effects could be compromised, plus you need to keep D levels up, especially if in northern latitudes or hot countries where sun exposure is avoided.