1. According to current research on taste, a quarter of UK's population could be called supertasters, or those who "have twice as many taste buds on [their] tongue . . . something which makes [them] particularly sensitive to bitter tastes" (Roxby, 2012).
2. A quarter of UK's population can be called supertasters because their tongues have double the taste buds, resulting in sensitivity to the tastes of foods like lemons and brussels sprouts.
3. If people make faces tasting lemons and don't like brussels sprouts, then they are probably supertasters, together with 25% of the UK population. This means they have twice the taste buds on their tongues as the rest of us – something which makes them particularly sensitive to bitter tastes.
4. Supertasters are sensitive to bitter tastes because their tongues have double the taste buds.