1. Blueberries: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5187535/
2. Fish: https://adventisthealthstudy.org/studies/AHS-2
3. Olive Oil: https://nationalpost.com/news/world/half-a-tablespoon-of-olive-oil-each-day-reduces-cardiac-deaths-by-20-percent-study-says
4. Olive Oil: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4515873/
5. Nuts: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5762129/
6. Beans: https://pubmed.ncbi.nlm.nih.gov/25351652/
7. Oatmeal: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5885279/
8. Green Tea: https://www.ahajournals.org/doi/10.1161/JAHA.122.026477