Zinc

1. http://bergenhelse.no/wp-content/uploads/2019/06/A-potential-medicinal-importance-of-zinc-in-human-health-and-chronic-disease.pdf

2. https://journals.lww.com/co-gastroenterology/Fulltext/2009/03000/Zinc_deficiency.9.aspx

3. https://academic.oup.com/jn/article/130/5/1344S/4686363?login=true

4. http://www.scienceandculture-isna.org/2020/july-august/02%20AMIT%20KRISHNA%20DE%20(1).pdf

5. https://www.cambridge.org/core/journals/british-journal-of-nutrition/article/zinc-and-cognitive-development/8976432C08C0778D679C705765E31F97#article

6. https://www.ijpp.com/IJPP%20archives/2017_61_3/232-236.pdf

Magnesium

Vitamin B6 (P5P)

Ingredients when stacked

1. http://agro.icm.edu.pl/agro/element/bwmeta1.element.dl-catalog-f5aab7b4-5672-4bd7-8289-130919c4e7a3/c/10_RPZH_vol_62_nr_4-2011_413.pdf

2. https://www.mdpi.com/2076-3921/9/11/1152

Phosphatidylserine

1. https://www.mdpi.com/2076-3921/9/11/1152blandit

2. https://jissn.biomedcentral.com/articles/10.1186/1550-2783-5-11?optIn=false

3. https://link.springer.com/article/10.1007/BF00280123