Spice Sensitivity

Your result, the one DNA position behind it, and what the research says.

7/10 confidence.

About Spice Sensitivity

Capsaicin does not damage anything and is not really a taste. It binds TRPV1, a receptor on nerve endings whose actual job is to report harmful heat, and triggers the same alarm a hot surface would. That is why chili feels like burning and why cold drinks help less than fat does. This variant swaps one building block of that receptor at position 585, which alters how readily it fires. The same receptor is why the sensation fades with regular exposure: repeated activation gradually blunts the nerve endings.

Good to know: Capsaicin is detected by a heat-and-pain receptor, not a taste receptor. Milk quenches the burn better than water does, but skim milk works as well as whole, so protein matters as much as fat. Regular chili eating genuinely blunts these nerve endings over time.

Fun fact: Birds are entirely unaffected by capsaicin because their version of this receptor does not bind it, which is how chili plants get their seeds spread.

Discovery: TRPV1 was identified as the capsaicin receptor in 1997, work that contributed to the 2021 Nobel Prize in Physiology or Medicine.

The Variant

The single variant behind this trait

Gene: TRPV1

Variant (rsID): rs8065080

Location: Chr 17:3,577,153

dbSNP rs8065080

The studies

Interactions between Chemesthesis and Taste: Role of TRPA1 and TRPV1 (Rhyu MR et al., International journal of molecular sciences, 2021)

Effect of single-nucleotide polymorphisms in TRPV1 on burning pain and capsaicin sensitivity in Japanese adults (Okamoto N et al., Molecular pain, 2018)

Short Report: TRPV1-polymorphism 1911 A>G alters capsaicin-induced sensory changes in healthy subjects (Forstenpointner J et al., PloS one, 2017)

Multiple single nucleotide polymorphisms of the transient receptor potential vanilloid 1 (TRPV1) genes associate with cough sensitivity to capsaicin in healthy subjects (Liviero F et al., Pulmonary pharmacology & therapeutics, 2020)

Capsaicin: beyond TRPV1 (Juárez-Contreras R et al., Frontiers in nutrition, 2025)

Other lifestyle traits

Umami Sensitivity: A change in one half of the umami receptor, linked to the lowest concentration of glutamate at which you can recognize savory taste.

Floral Scent Perception: A change in a single smell receptor that decides whether the violet-like compound in many flowers, fruits and perfumes registers strongly or barely at all.

Sweetener Bitterness: A change in a third bitter receptor, studied for why some people taste a bitter edge in sweeteners.

Back to All Traits

Content updated September 2026.

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