Coffee or tea? Determined by genes!

  Both of these beverages contain bitter ingredients such as caffeine. Previous studies have found that people experience bitter taste differently depending on the taste receptor genes.
  Now, an Australian scientist has investigated the relationship between their taste receptor genes and their tea (or coffee) habits by investigating more than 430,000 British people. He found that those who had genetic mutations that made them taste more palatable with caffeine were 20% more likely to fall in love with coffee. These people generally don’t like tea. This may be because they are more likely to indulge in the excitement of caffeine, and coffee contains more caffeine than tea.
  In contrast, genetic mutations made them more sensitive to the other two bitter tastes — quinine and propylthiouracil — people who fell in love with strong tea by 4% and 9%, respectively. These people are also unlikely to fall in love with coffee. This may be the reason why these two components are higher in strong tea.