A sensitivity for the bitter tastes in life may be linked to the pain relief and other healing benefits we gain from the phytonutrients that are the active ingredient in the pain relief tablets of Aspirin TM. Salicin/salcylic acid/salicylates are a group of phytonutrients found in berries and other fruits and some vegetables and in many spices used in India. A reduced cancer rate in people of rural India is speculated to be associated with the increased use of traditional foods and cooking spices in the their diet. (https://www.ncbi.nlm.nih.gov/pubmed/16608205)
Some people may have food sensitivities or allergies to the group of phyotnutrients and a list of foods lower in the nutrients then other foods and those, such as buckwheat, that have more of the nutrients available than average here: http://pubs.acs.org/doi/full/10.1021/acs.jafc.7b04313
Aspirin was developed from analysis of the Willow Bark Tea, which was a traditional medicinal remedy for pain relief. https://www.sciencedirect.com/science/article/pii/S1319610310000578
Some people have more sensitive perception of the bitter taste and it was found to be associated with increased sensitivity to the salicin content of foods. The genetic difference developed around 1.1 million years ago. https://www.sciencedaily.com/releases/2013/11/131111185522.htm
Addition 5/12/18: I had a genetic screening test done recently and learned that I do have a genetic difference in my ability to taste bitter flavors that may have made me more sensitive to lower amounts of bitter substances as a child and then might have gotten used to more bitter flavors as an adult. https://www.snpedia.com/index.php/gs227
So a spoonful of medicine may need a little sugar to help the bitters go down better.
(pun intended, Bitters was an old type of medicine based on quinine that was occasionally used in alcoholic mixed drinks and was called Bitters because of it’s bitter, sour or bittersweet flavor, https://en.wikipedia.org/wiki/Bitters
This article about a study with less than 1000 people that is making links between food taste preferences and psychiatric tendencies is sensationalistic and unreliable with such a small group of people. nypost.com/2017/12/31/if-you-like-gin-and-tonic-you-might-be-a-psychopath/ Certain illnesses and some medications can cause an increased sense of bitterness in taste whether or not the food is very bitter to the average person. bitter+taste+preference+and+inflammatory+conditions
I’ve written about this topic before with excerpts from two research articles. The post includes a list of some foods and spices salicylate content: Carrots, spices and Baby Aspirin may help prevent cancer and inflammation. https://transcendingsquare.com/2011/10/21/carrots-spices-and-baby-aspirin-help-prevent-cancer-and-inflammation/
Disclaimer: Opinions are my own and the information is provided for educational purposes within the guidelines of fair use. While I am a Registered Dietitian this information is not intended to provide individual health guidance. Please see a health professional for individual health care purposes.