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Start date: 2023Subject: search.filters.subject.Sugar reduction

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    The effect of a 14-day Gymnema sylvestre intervention to reduce sugar intake in people self-identifying with a sweet tooth
    (Elsevier Ltd, 2025-01-28) Hsiao WH; Kruger R; Diako C; Nelson I; Stice E; Ali A
    Gymnema sylvestre (GS) contains gymnemic acids which can reversibly suppress sweet taste responses. This randomised crossover study aimed to investigate whether supplemental GS use can reduce sugar cravings, sweet food desire and consumption among adults that identify as high sweet food consumers (having a ‘sweet tooth’). Participants were told three different mints were trialled to avoid bias. On day zero, 32 healthy participants underwent baseline sensory testing for sweet taste perception using the placebo mint (PLAC). Participants were then randomised into the two intervention groups. On day 15 and 30, participants underwent further sensory testing using the GS mints, before embarking on each 14-day intervention using the GS mints, using either a systematic (at 3 specified times/day; SYS) or ad libitum (up to 6 mints/day at times of their choosing; AD-LIB) regimen, as assigned. On day 30, participants swapped over to the other intervention (using the other regimen), completing final data collection in day 45. At all visits participants completed questionnaires (food frequency questionnaire, beverage questionnaire and cravings questionnaire), anthropometric measures, and sensory testing. Sensory testing was not required for day 45. The AD-LIB condition reduced daily sugar-sweetened beverages (SSB) intake by 42% relative to PLAC (p = 0.015) and reduced overall sugar cravings by 28% relative to PLAC (p = 0.045). Both AD-LIB and SYS reduced pleasantness ratings (p < 0.005) and desire (p = 0.005) for more chocolate. Using GS with an ad libitum regimen reduced sugar cravings and changed sweet food desire and consumption in people identifying as having a sweet tooth.
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    The effect of a 14-day sugar reduction intervention on individuals with a ‘sweet tooth’ on intake, desire, and preference for sweet foods : a thesis presented to Massey University in partial fulfilment of requirements for the degree of Masters of Science (MSc) in Nutrition and Dietetics
    (Massey University, 2023) Hsiao, Wei-Hsi
    Background: People who identify as having a sweet tooth, may find it difficult to control their sugar intake. Gymnema sylvestre is a plant that contains a chemical compound called gymnemic acid which can reversibly suppress sweet taste responses. Objectives: The study aimed to investigate whether supplementing Gymnema sylvestre (GS) can reduce sugar cravings, sweet food desire and consumption among adults that identify as high sweet food consumers (sweet tooths). Method: On day zero, 32 healthy participants who self-classified as having a sweet tooth underwent baseline sensory testing for sweet taste perception using the placebo mint (PLAC). Participants then went through the randomisation process into the two groups. On day 15, participants underwent further sensory testing (with GS mint) before embarking on 14 days' supplementation using the GS mints following either a systematic (3 times/day at specified times; SYS) or ad libitum (up to 6 mints/day at times of their choosing; AD-LIB) regimen. On day 30, participants swapped over to the other trial (using the other regimen). On day 45, participants completed final questionnaires and anthropometric measurements. At each visit, participants were required to complete questionnaires (food frequency questionnaire, beverage questionnaire and cravings questionnaire), sensory testing and measurement of anthropometry. At all visits participants completed questionnaires, anthropometric measures, and sensory testing. Sensory testing was not required for day 45. Results: AD-LIB reduced daily sugar-sweetened beverages (SSB) intake by 42% relative to PLAC (p=0.015). AD-LIB reduced overall sugar cravings by 28% relative to PLAC (p=0.045) AD-LIB and SYS reduced pleasantness ratings (p=0.005). Conclusion: Gymnema sylvestre consumption using an ad libitum regimen reduced sugar cravings and changed sweet food desire and consumption.