カロリーを減らしたい?唐辛子を加えてみてください。(Looking to cut calories? Try adding chilies, study suggests)

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2025-05-21 ペンシルベニア州立大学(PennState)

ペンシルベニア州立大学の研究で、食事に少量のチリペッパーを加えると、摂取カロリーが減る可能性があることが示されました。130人の成人を対象に、ビーフチリやチキンティッカマサラを異なる辛さで提供したところ、わずかに辛味を加えた料理を食べた参加者は食べるスピードが遅くなり、結果的に摂取量とカロリーが減少しました。辛味は味や満足感に悪影響を与えず、食欲抑制に有効な手段となり得ると研究者は述べています。

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昼食の食事の辛さを増すと、経口処理行動に影響し、食事量とエネルギー摂取量が減少する Increasing the spiciness of a lunch meal influences oral processing behaviors and decreases food and energy intake

Paige M. Cunningham, Isaiah M. Smith, John E. Hayes
Food Quality and Preference  Available online: 28 April 2025
DOI:https://doi.org/10.1016/j.foodqual.2025.105566

カロリーを減らしたい?唐辛子を加えてみてください。(Looking to cut calories? Try adding chilies, study suggests)

Highlights

  • We manipulated the amount of dried chilies in three ad libitum lunch meals.
  • When perceived spiciness increased, eating rate slowed.
  • When eating rate was slowed, food intake was reduced.
  • Oral heat manipulation offers a non-textural approach to modify eating behavior.
  • Addition of chilies can decrease food intake while preserving palatability.

Abstract

Recent evidence suggests increasing oral burn by adding chilies to food modifies oral processing behaviors like eating rate, but how these modifications affect food intake remains unclear. In 3 crossover experiments, adults ate a 650 g lunch of beef chili [experiment 1; n = 52] or chicken tikka masala [experiment 2a; n = 44, and 2b; n = 34] twice in the laboratory while being video-recorded. We tested how adding chiles to a meal influenced (a) food intake and (b) oral processing. A consistent weight of paprika was added, but the ratio of hot-to-sweet paprika was varied, to make spicy (100 % hot paprika) and mild (75–100 % sweet paprika) versions of meals. Meal duration was extracted from videos to calculate eating rate (g/min). Participants rated liking and spiciness on a VAS before and after consumption. In Experiment 1, participants ate more slowly (p = 0.04), consuming 11 % less (46 ± 17 g) spicy chili relative to mild chili (p = 0.009). While initial ratings of spiciness differed (p < 0.0001), liking did not (p = 0.88). In Experiment 2a, spiciness ratings did not differ between conditions (p = 0.22), and intake did not differ (p = 0.36). Experiment 2b increased the total amount of paprika in the tikka, leading to significant differences in spiciness between conditions (p < 0.001), without affecting liking (p = 0.19). As with Experiment 1, this increase in spiciness resulted in an 18 % reduction in food intake and a 17 % reduction eating rate (both p’s < 0.005). Overall, these experiments identify a non-textural manipulation that can be used to slow eating rate and reduce ad libitum intake without adversely impacting food pleasure.

医療・健康
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