Journal
AMERICAN JOURNAL OF CLINICAL NUTRITION
Volume 106, Issue 5, Pages 1197-1205Publisher
AMER SOC NUTRITION-ASN
DOI: 10.3945/ajcn.116.148395
Keywords
mustard; allyl-isothiocyanate; energy expenditure; thermogenesis; thermogenic food
Categories
Funding
- National Institute for Health Research
- British Retail Consortium
- Marie Curie Fellowships
- Wellcome Trust
- Medical Research Council
- British Heart Foundation
- Biotechnology and Biological Sciences Research Council
- Biotechnology and Biological Sciences Research Council [BB/J009865/1] Funding Source: researchfish
- British Heart Foundation [PG/12/53/29714] Funding Source: researchfish
- Medical Research Council [MC_UU_12012/2, MC_UU_12012/5/B, MC_UU_12012/5] Funding Source: researchfish
- National Institute for Health Research [NF-SI-0514-10176, ACF-2011-14-011] Funding Source: researchfish
- BBSRC [BB/J009865/1] Funding Source: UKRI
- MRC [MC_UU_12012/2, MC_UU_12012/5] Funding Source: UKRI
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Background: Induction of nonshivering thermogenesis can be used to influence energy balance to prevent or even treat obesity. The pungent component of mustard, allyl-isothiocyanate (AITC), activates the extreme cold receptor transient receptor potential channel, subfamily A, member 1 and may thus induce energy expenditure and metabolic changes. Objective: The objective of our study was to evaluate the potential of mustard AITC to induce thermogenesis (primary outcome) and alter body temperature, cold and hunger sensations, plasma metabolic parameters, and energy intake (secondary outcomes). Design: Energy expenditure in mice was measured after subcutaneous injection with vehicle, 1 mg norepinephrine/kg, or 5 mg AITC/kg. In our human crossover study, 11 healthy subjects were studied under temperature-controlled conditions after an overnight fast. After ingestion of 10 g of capsulated mustard or uncapsulated mustard or a capsulated placebo mixture, measurements of energy expenditure, substrate oxidation, core temperature, cold and hunger scores, and plasma parameters were repeated every 30 min during a 150-min period. Subjects were randomly selected for the placebo and capsulated mustard intervention; 9 of 11 subjects received the uncapsulated mustard as the final intervention because this could not be blinded. After the experiments, energy intake was measured with the universal eating monitor in a test meal. Results: In mice, AITC administration induced a 32% increase in energy expenditure compared with vehicle (17.5 +/- 4.9 J . min(-1) . mouse(-1) compared with 12.5 +/- 1.2 J . min(-1) . mouse(-1), P = 0.03). Of the 11 randomly selected participants, 1 was excluded because of intercurrent illness after the first visit and 1 withdrew after the second visit. Energy expenditure did not increase after ingestion of capsulated or uncapsulated mustard compared with placebo. No differences in substrate oxidation, core temperature, cold and hunger scores, or plasma parameters were found, nor was the energy intake at the end of the experiment different between the 3 conditions. Conclusion: The highest tolerable dose of mustard we were able to use did not elicit a relevant thermogenic response in humans. This trial was registered at www.controlled-trials.com as ISRCTN19147515.
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