Browsing by Author "Martin A"

Now showing 1 - 9 of 9
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    Black tea and improvement of attention: evaluation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006
    (John Wiley and Sons Ltd on behalf of European Food Safety Authority, 2018-05-24) EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA); Turck D; Bresson J-L; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdorf I; McArdle HJ; Naska A; Neuhäuser-Berthold M; Nowicka G; Pentieva K; Sanz Y; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Martin A; Strain SJJ; Siani A
    Following an application from Unilever NV, submitted for authorisation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006 via the Competent Authority of Ireland, the EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) was asked to deliver an opinion on the scientific substantiation of a health claim related to black tea and improvement of attention. The scope of the application was proposed to fall under a health claim based on newly developed scientific evidence. The food proposed by the applicant as the subject of the health claim is black tea. The Panel considers that black tea characterised by its content of tea solids, caffeine and l-theanine, which is the subject of the health claim, is sufficiently characterised in relation to the claimed effect. The claimed effect proposed by the applicant is 'improves attention'. The Panel considers that improvement of attention is a beneficial physiological effect. Three human intervention studies provided by the applicant show an effect of black tea on attention under the conditions of used proposed by the applicant. The applicant proposed that the claimed effect depends on the concerted action of two substances, caffeine and l-theanine, both of which are present in black tea. The Panel considers that the effect of black tea on attention observed in the three human intervention studies provided by the applicant can be explained by its caffeine content. The Panel concludes that a cause and effect relationship has been established between the consumption of black tea and improvement of attention. The Panel considers that the effect of black tea on attention can be explained by its caffeine content. The following wording reflects the scientific evidence: 'Owing to its caffeine content, black tea improves attention'. In order to obtain the claimed effect, 2-3 servings of black tea providing at least 75 mg of caffeine in total should be consumed within 90 min.
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    Black tea and maintenance of normal endothelium-dependent vasodilation: evaluation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006
    (John Wiley and Sons Ltd on behalf of European Food Safety Authority, 2018-01-16) EFSA Panel on Dietetic Products, Nutrition and Allergies (EFSA NDA panel); Turck D; Bresson J-L; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdor I; McArdle HJ; Naska A; Neuhäuser-Berthold M; Nowicka G; Pentieva K; Sanz Y; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Martin A; Strain SJJ; Siani A
    Following an application from Unilever NV, submitted for authorisation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006 via the Competent Authority of Ireland, the EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) was asked to deliver an opinion on the scientific substantiation of a health claim related to black tea and maintenance of normal endothelium-dependent vasodilation. The scope of the application was proposed to fall under a health claim based on newly developed scientific evidence. The food proposed by the applicant as the subject of the health claim is black tea beverages, either freshly prepared or reconstituted from water extract powders of black tea, characterised by the content of flavanols (expressed as catechins plus theaflavins) of at least 30 mg per 200 mL serving. The Panel considers that black tea characterised by the content of flavanols (expressed as catechins plus theaflavins) is sufficiently characterised. The claimed effect proposed by the applicant is 'improvement of endothelium-dependent vasodilation'. The Panel considers that maintenance of normal endothelium-dependent vasodilation is a beneficial physiological effect. Of the five human intervention studies provided on the chronic effect of black tea consumption on endothelium-dependent vasodilation, two investigated the effect after regular consumption of black tea for a sufficiently long time period (i.e. at least 4 weeks). These two studies did not allow an effect of black tea on endothelium-dependent vasodilation to be established. The Panel concludes that a cause and effect relationship has not been established between the consumption of black tea and maintenance of normal endothelium-dependent vasodilation.
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    Guidance on the scientific requirements for health claims related to muscle function and physical performance: (Revision 1)
    (John Wiley and Sons Ltd on behalf of European Food Safety Authority, 2018-10-30) EFSA Panel on Nutrition, Novel Foods and Food Allergens (EFSA NDA Panel); Turck D; Castenmiller J; De Henauw S; Hirsch-Ernst KI; Kearney J; Knutsen HK; Maciuk A; Mangelsdorf I; McArdle HJ; Naska A; Pelaez C; Pentieva K; Thies F; Tsabouri S; Vinceti M; Bresson J-L; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Neuhäuser-Berthold M; Nowicka G; Sanz Y; Sjödin A; Stern M; Tomé D; Van Loveren H; Willatts P; Martin A; Strain JJ; Heng L; Martínez SV; Siani A
    EFSA has asked the Panel on Nutrition, Novel Foods and Food Allergens (NDA) to update the guidance on the scientific requirements for health claims related to physical performance published in 2012. The update takes into account the experience gained by the NDA Panel with the evaluation of additional health claim applications, changes introduced to the general scientific guidance for stakeholders for health claims applications and information collected from a grant launched in 2014 which aimed at gathering information in relation to claimed effects, outcome variables and methods of measurement in the context of the scientific substantiation of health claims. The guidance is intended to assist applicants in preparing applications for the authorisation of health claims related to muscle function and physical performance. The draft guidance was subject to public consultation from 16 July to 2 September 2018. This document supersedes the guidance on the scientific requirements for health claims related to physical performance published in 2012. It is intended that the guidance will be further updated as appropriate in the light of experience gained from the evaluation of health claims.
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    L-carnitine and contribution to normal lipid metabolism: evaluation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006
    (John Wiley and Sons Ltd on behalf of European Food Safety Authority, 2018-01-16) EFSA Panel on Dietetic Products, Nutrition and Allergies (EFSA NDA Panel); Turck D; Bresson J-L; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdorf I; McArdle HJ; Naska A; Neuhäuser-Berthold M; Nowicka G; Pentieva K; Sanz Y; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Martin A; Strain SJJ; Siani A
    Following an application from Lonza Ltd., submitted for authorisation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006 via the Competent Authority of Germany, the EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) was asked to deliver an opinion on the scientific substantiation of a health claim related to L-carnitine and normal lipid metabolism. The food that is proposed as the subject of the health claim is L-carnitine. The Panel considers that L-carnitine is sufficiently characterised. The claimed effect proposed by the applicant is 'normal lipid metabolism'. The target population proposed by the applicant is the general population. The Panel considers that contribution to normal lipid metabolism is a beneficial physiological effect. The applicant proposes that the claim submitted with this application is based on the essentiality of a nutrient. The Panel considers that the evidence provided does not establish that dietary L-carnitine is required to maintain normal lipid metabolism in the target population, for which the claim is intended. The Panel concludes that a cause and effect relationship has not been established between the consumption of L-carnitine and contribution to normal lipid metabolism in the target population.
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    Māori households assembling precarious leisure
    (Taylor and Francis Group, 2024) Martin A; Hodgetts D; King P; Blake D
    Many members of the precariat in Aotearoa/New Zealand (NZ) struggle to access resources for leisure. This article draws on four interview waves with five precariat Māori (Indigenous peoples of Aotearoa/NZ) households (N = 32 interviews) using mapping and photo-elicitation interviews to explore participant leisure engagements. We document how precarious leisure for some Māori is assembled agentively by participants out of key elements associated with their situations (e.g. financial and housing insecurities) and core Māori principles and processes of whanaungatanga (cultivating positive relationships) and manaakitanga (caring for self and others). Participant accounts foregrounded the importance of mātauranga Māori (systems of knowledge) and culture in shaping contemporary leisure practices that can promote a sense of ontological security, place, belonging, connection, cultural continuity, and self as Māori. Though beneficial to self and others, participant leisure practices are rendered insecure by the resource restraints of life in the precariat.
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    NWT-02, a fixed combination of lutein, zeaxanthin and docosahexaenoic acid in egg yolk and reduction of the loss of vision: evaluation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006
    (John Wiley and Sons Ltd on behalf of European Food Safety Authority, 2018-01-18) EFSA Panel on Dietetic Products, Nutrition and Allergies (EFSA NDA Panel); Turck D; Bresson J-L; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdorf I; McArdle HJ; Naska A; Neuhäuser-Berthold M; Nowicka G; Pentieva K; Sanz Y; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Martin A; Strain SJJ; Siani A
    Following an application from Newtricious R&D B.V., submitted for authorisation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006 via the Competent Authority of the Netherlands, the EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) was asked to deliver an opinion on the scientific substantiation of a health claim related to NWT-02 and a reduction of the loss of vision. The food proposed by the applicant as the subject of the health claim is NWT-02. NWT-02 is standardised by its content in lutein (≥ 1.10 mg), zeaxanthin (≥ 0.20 mg) and docosahexaenoic acid (DHA) (≥ 170 mg). The Panel considers that the food/constituent that is the subject of the health claim, NWT-02, a fixed combination of lutein, zeaxanthin and docosahexaenoic acid in egg yolk, is sufficiently characterised. The claimed effect proposed by the applicant is 'reduces loss of vision'. The target population proposed by the applicant is 'healthy adults over 50 years of age'. The Panel considers that a reduction of the loss of vision is a beneficial physiological effect. The applicant provided two human intervention studies for the scientific substantiation of the claim. The Panel considers that the only study from which conclusions can be drawn for the scientific substantiation of the claim did not show an effect of NWT-02 on vision. The Panel concludes that a cause and effect relationship has not been established between the consumption of NWT-02, a fixed combination of lutein, zeaxanthin and docosahexaenoic acid in egg yolk, and a reduction of the loss of vision.
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    Symbiosal® and lowering of blood pressure and reduced risk of hypertension: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006
    (John Wiley and Sons Ltd on behalf of European Food Safety Authority, 2018-07-25) EFSA Panel on Dietetic Products, Nutrition and Allergies (EFSA NDA Panel); Turck D; Bresson J-L; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdorf I; McArdle HJ; Naska A; Neuhäuser-Berthold M; Nowicka G; Pentieva K; Sanz Y; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Martin A; Strain SJJ; Siani A
    Following an application from Han-Biotech GmbH, submitted for authorisation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006 via the Competent Authority of Germany, the EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) was asked to deliver an opinion on the scientific substantiation of a health claim related to Symbiosal®, lowering of blood pressure and reduced risk of hypertension. The Panel considers that the food, Symbiosal®, which is the subject of the health claim, and the food, table salt, which Symbiosal® should replace, are sufficiently characterised. Lowering of blood pressure is a beneficial physiological effect. Increased blood pressure is a risk factor for hypertension. In weighing the evidence, the Panel took into account that one human study with some methodological limitations showed an effect of Symbiosal® on blood pressure in the context of a self-selected diet with a maximum of 3 g/day added salt. The Panel also took into account that no other human studies in which these results have been replicated were provided, that the animal studies did not support the results of the human study, that no evidence was provided in support of a mechanism by which Symbiosal® could induce a decrease in blood pressure upon oral consumption as compared to table salt in vivo in humans, and the low biological plausibility of the effect observed in the human intervention study. The Panel concludes that a cause and effect relationship has not been established between the consumption of Symbiosal® and lowering of blood pressure.
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    THE SHORT-TERM EFFECT OF IRRADIANCE ON THE PHOTOSYNTHETIC PROPERTIES OF ANTARCTIC FAST-ICE MICROALGAL COMMUNITIES(1).
    (WILEY-BLACKWELL PUBLISHING, INC, 2009-12) Ryan KG; Cowie ROM; Liggins E; McNaughtan D; Martin A; Davy SK
    Although sea-ice represents a harsh physicochemical environment with steep gradients in temperature, light, and salinity, diverse microbial communities are present within the ice matrix. We describe here the photosynthetic responses of sea-ice microalgae to varying irradiances. Rapid light curves (RLCs) were generated using pulse amplitude fluorometry and used to derive photosynthetic yield (ΦPSII ), photosynthetic efficiency (α), and the irradiance (Ek ) at which relative electron transport rate (rETR) saturates. Surface brine algae from near the surface and bottom-ice algae were exposed to a range of irradiances from 7 to 262 μmol photons · m(-2)  · s(-1) . In surface brine algae, ΦPSII and α remained constant at all irradiances, and rETRmax peaked at 151 μmol photons · m(-2)  · s(-1) , indicating these algae are well acclimated to the irradiances to which they are normally exposed. In contrast, ΦPSII , α, and rETRmax in bottom-ice algae reduced when exposed to irradiances >26 μmol photons · m(-2)  · s(-1) , indicating a high degree of shade acclimation. In addition, the previous light history had no significant effect on the photosynthetic capacity of bottom-ice algae whether cells were gradually exposed to target irradiances over a 12 h period or were exposed immediately (light shocked). These findings indicate that bottom-ice algae are photoinhibited in a dose-dependent manner, while surface brine algae tolerate higher irradiances. Our study shows that sea-ice algae are able to adjust to changes in irradiance rapidly, and this ability to acclimate may facilitate survival and subsequent long-term acclimation to the postmelt light regime of the Southern Ocean.
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    Xanthohumol in XERME®, a xanthohumol-enriched roasted malt extract, and protection of DNA from oxidative damage: evaluation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006
    (John Wiley and Sons Ltd on behalf of European Food Safety Authority, 2018-03-13) EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA); Turck D; Bresson J-L; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdorf I; McArdle HJ; Naska A; Neuhäuser-Berthold M; Nowicka G; Pentieva K; Sanz Y; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Martin A; Strain SJJ; Siani A
    Following an application from TA-XAN AG, submitted for authorisation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006 via the Competent Authority of Germany, the EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) was asked to deliver an opinion on the scientific substantiation of a health claim related to xanthohumol in XERME ®, a xanthohumol-enriched roasted malt extract, and protection of DNA from oxidative damage. The scope of the application was proposed to fall under a health claim based on newly developed scientific evidence. The food proposed by the applicant as the subject of the health claim is xanthohumol in XERME ®, a xanthohumol-enriched roasted malt extract. The Panel considers that xanthohumol in XERME ®, a xanthohumol-enriched roasted malt extract, is sufficiently characterised. The claimed effect proposed by the applicant is 'helps to maintain the integrity of DNA and protects against oxidative damage in the cells of the body'. The Panel considers that protection of DNA from oxidative damage is a beneficial physiological effect. The only human study from which conclusions can be drawn for the scientific substantiation of the claim did not show an effect of xanthohumol in XERME ® on the protection of DNA from oxidative damage. In the absence of evidence for an effect of xanthohumol in XERME ® on the protection of DNA from oxidative damage, the studies provided by the applicant on the proposed mechanisms by which the food/constituent could exert the claimed effect were not considered by the Panel for the scientific substantiation of the claim. The Panel concludes that a cause and effect relationship has not been established between the consumption of xanthohumol in XERME ®, a xanthohumol-enriched roasted malt extract, and protection of DNA from oxidative damage.