I have been using IP6, TMG ans Zinc to boost immune system and for prostae support. It cost me about 50 for 8 weeks worth. I bet it in bulk powders.

IP6 (Inositol Hexaphosphate) dosed at 1 teaspoon/twice a day It is for boosting the immune system and Reduce the Risk of Cardiovascular Diseases, including Heart Attack and Stroke
IP6 Inositol Called a Natural Cancer Fighter

TMG (Trimethylglycine) 2.5 grams once a day is a methyl donor that reduces NAD Homocysteine then its free glycine. All these factors drive NADH:NAD+ to reduce inflamation
The Power of Trimethylglycine (TMG) Supplementation | ANS Performance

Zinc-I take 400mgs which equals 50mgs elemental zinc. It is a key mineral that cells use to metabolize nutrients. Immune function, DNA and protein production, and cell division are all related to zinc levels in the body. Great for prostate too
https://prostate.net/articles/benefi...or-mens-health

I also take a multi too.