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European Journal of Nutrition

, Volume 55, Issue 7, pp 2281–2293 | Cite as

Nut-enriched bread is an effective and acceptable vehicle to improve regular nut consumption

  • Asika Devi
  • Alexandra Chisholm
  • Andrew Gray
  • Siew Ling Tey
  • Destynee Williamson-Poutama
  • Sonya L. Cameron
  • Rachel C. BrownEmail author
Original Contribution

Abstract

Purpose

Consuming 30 g of nuts/day is recommended to reduce chronic disease. However, nut consumption appears far from ideal among several populations. A potential strategy to increase consumption is to add nuts to a staple, for example, bread. Whether the health benefits and acceptability of nuts persist in this form is currently unknown. Thus, we examined the effects of consuming three nut-enriched breads on postprandial glycaemia, satiety, gastrointestinal tolerance, dietary intakes, and acceptance.

Methods

In this controlled, crossover study, 32 participants were randomly allocated to receive one of four breads for 8 days each. Three breads contained either 30 g of finely sliced hazelnuts, 30 g semi-defatted hazelnut flour, or 15 g of each (amounts per 120 g bread) and were compared with a control nut-free bread. Blood glucose response was measured over 120 min, along with ratings of gastrointestinal discomfort. Appetite ratings and diet diaries were completed during each treatment period.

Results

Area under the blood glucose curve was significantly lower for the nut breads compared to the control bread (all P < 0.001), with no significant differences between the nut breads (all P ≥ 0.130). There were no significant differences in satiety (all P ≥ 0.135) or gastrointestinal symptoms (all P ≥ 0.102) between the breads. Acceptance was highest for the finely sliced hazelnut bread. Furthermore, consuming hazelnut-enriched bread improved diet quality, increasing monounsaturated fat, vitamin E, and dietary fibre intakes.

Conclusion

Bread appears to be an effective and acceptable vehicle for increasing nut consumption, resulting in improved postprandial glycaemia and diet profiles. Long-term studies are now required.

Keywords

Postprandial glycaemic response Nuts Satiety Appetite Gastrointestinal tolerance Acceptance 

Notes

Acknowledgments

The funding for the present study was provided by a University of Otago Research Grant. The authors would like to thank the participants for their commitment and enthusiasm in participating in this study.

Compliance with ethical standards

Conflict of interest

On behalf of all authors, the corresponding author states that there is no conflict of interest.

References

  1. 1.
    Bolling BW, Chen CY, McKay DL, Blumberg JB (2011) Tree nut phytochemicals: composition, antioxidant capacity, bioactivity, impact factors. A systematic review of almonds, Brazils, cashews, hazelnuts, macadamias, pecans, pine nuts, pistachios and walnuts. Nutr Res Rev 24:244–275CrossRefGoogle Scholar
  2. 2.
    Ros E (2010) Health benefits of nut consumption. Nutrients 2:652–682CrossRefGoogle Scholar
  3. 3.
    Sabate J, Ang Y (2009) Nuts and health outcomes: new epidemiologic evidence. Am J Clin Nutr 89:S1643–S1648CrossRefGoogle Scholar
  4. 4.
    Ceriello A (2005) Postprandial hyperglycemia and diabetes complications: Is it time to treat? Diabetes 54:1–7CrossRefGoogle Scholar
  5. 5.
    O’Keefe JH, Bell DSH (2007) Postprandial hyperglycemia/hyperlipidemia (postprandial dysmetabolism) is a cardiovascular risk factor. Am J Cardiol 100:899–904CrossRefGoogle Scholar
  6. 6.
    Jackson KG, Poppitt SD, Minihane AM (2012) Postprandial lipemia and cardiovascular disease risk: interrelationships between dietary, physiological and genetic determinants. Atherosclerosis 220:22–33CrossRefGoogle Scholar
  7. 7.
    Blake D, Meigs J, Muller D, Naijar S, Andres R, Nathan D (2004) Impaired glucose tolerance, but not impaired fasting glucose, is associated with increased levels of coronary heart disease risk factors results from the Baltimore longitudinal study on aging. Diabetes 53:2095–2100CrossRefGoogle Scholar
  8. 8.
    Dickinson S, Brand-Miller J (2005) Glycemic index, postprandial glycemia and cardiovascular disease. Curr Opin Lipidol 16:69–75CrossRefGoogle Scholar
  9. 9.
    Smith N, Barzilay J, Shaffer D, Savage P, Heckbert S, Kuller L, Kronmal R, Resnick H, Psaty B (2002) Fasting and 2-h postchallenge serum glucose measures and risk of incident cardiovascular events in the elderly: the cardiovascular health study. Arch Intern Med 162:209–216CrossRefGoogle Scholar
  10. 10.
    Barbour JA, Howe PR, Buckley JD, Bryan J, Coates AM (2014) Nut consumption for vascular health and cognitive function. Nutr Res Rev 27:131–158CrossRefGoogle Scholar
  11. 11.
    O’Keefe JH, Gheewala NM, O’Keefe JO (2008) Dietary strategies for improving post-prandial glucose, lipids, inflammation, and cardiovascular health. J Am Coll Cardiol 51:249–255CrossRefGoogle Scholar
  12. 12.
    Tey SL, Brown R, Chisholm A (2012) Nuts and heart health. National Heart Foundation of New Zealand evidence-based position statement on the relationship of nuts to heart health. National Heart Foundation of New Zealand, New Zealand, AucklandsGoogle Scholar
  13. 13.
    Brown RC, Tey SL, Gray AR, Chisholm A, Smith C, Fleming E, Blakey C, Parnell W (2014) Patterns and predictors of nut consumption: results from the 2008/2009 New Zealand adult nutrition survey. Br J Nutr 112:2028–2040CrossRefGoogle Scholar
  14. 14.
    Jenab M, Sabaté J, Slimani N, Ferrari P, Mazuir M, Casagrande C, Deharveng G, Tyonneland A, Olsen A, Overvad K, Boutron-Ruault M-C, F Clavel-Chapelon, Boeing H, Weikert C, Linseisen J, Rohrmann S, Trichopoulou A, Naska A, Palli D, Sacerdote C, Tumino R, Mattiello A, Pala V, Bueno-de-Mesquita HB, Ock MC, Peeters PH, Engeset D, Skeie G, Jakszyn P, Ardanaz E, Quirós JR, Chirlaque MD, Martinez C, Amiano P, Berglund G, Palmqvist R, van Guelpen B, Bingham S, Key T, Riboli E (2006) Consumption and portion sizes of tree nuts, peanuts and seeds in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohorts from 10 European countries. Br J Nutr 96:S12–S23CrossRefGoogle Scholar
  15. 15.
    O’Neil CE, Keast DR, Nicklas TA, Fulgoni VL (2012) Out-of-hand nut consumption is associated with improved nutrient intake and health risk markers in US children and adults: national health and nutrition examination survey 1999–2004. Nutr Res 32:185–194CrossRefGoogle Scholar
  16. 16.
    Jenkins DJ, Kendall CW, Josse AR, Salvatore S, Brighenti F, Augustin LS, Ellis PR, Vidgen E, Rao AV (2006) Almonds decrease postprandial glycemia, insulinemia, and oxidative damage in healthy individuals. J Nutr 136:2987–2992Google Scholar
  17. 17.
    Josse AR, Kendall CW, Augustin LS, Ellis PR, Jenkins DJ (2007) Almonds and postprandial glycemia–a dose-response study. Metabolism 56:400–404CrossRefGoogle Scholar
  18. 18.
    Kendall CWC, Josse AR, Esfahani A, Jenkins DJA (2011) The impact of pistachio intake alone or in combination with high-carbohydrate foods on post-prandial glycemia. Eur J Clin Nutr 65:696–702CrossRefGoogle Scholar
  19. 19.
    Cohen AE, Johnston CS (2011) Almond ingestion at mealtime reduces postprandial glycemia and chronic ingestion reduces hemoglobin A1c in individuals with well-controlled type 2 diabetes mellitus. Metabolism 60:1312–1317CrossRefGoogle Scholar
  20. 20.
    Kendall CW, Campbell J, Jenkins AL, Jenkins DJ (2014) Acute effects of pistachios consumption on glucose and insulin, satiety hormones and endothelial function in the metabolic syndrome. Eur J Clin Nutr 68:370–375CrossRefGoogle Scholar
  21. 21.
    Wu H, Pan A, Yu Z, Qi Q, Lu L, Zhang G, Yu D, Zong G, Zhou Y, Chen X, Tang L, Feng Y, Zhou H, Chen X, Li H, Demark-Wahnefried W, Hu FB, Lin X (2010) Lifestyle counseling and supplementation with flaxseed or walnuts influence the management of metabolic syndrome. J Nutr 140:1937–1942CrossRefGoogle Scholar
  22. 22.
    Olmedilla-Alonso B, Granado-Lorencio F, Herrero-Barbudo C, Blanco-Navarro I, Blazquez-Garcia S, Perez-Sacristan B (2008) Consumption of restructured meat products with added walnuts has a cholesterol-lowering effect in subjects at high cardiovascular risk: a randomised, crossover, placebo-controlled study. J Am Coll Nutr 27:342–348CrossRefGoogle Scholar
  23. 23.
    Frecka JM, Hollis JH, Mattes RD (2008) Effects of appetite, BMI, food form and flavor on mastication: almonds as a test food. Eur J Clin Nutr 62:1231–1238CrossRefGoogle Scholar
  24. 24.
    Rebello CJ, Liu AG, Greenway FL, Dhurandhar NV (2013) Dietary strategies to increase satiety. Adv Food Nutr Res 69:105–182CrossRefGoogle Scholar
  25. 25.
    Tey SL, Brown R, Chisholm A, Gray A, Williams S, Delahunty C (2011) Current guidelines for nut consumption are achievable and sustainable: a hazelnut intervention. Br J Nutr 105:1503–1511CrossRefGoogle Scholar
  26. 26.
    Dewettinck K, Van Bockstaele F, Kuhnu B, Van de Walle D, Courtens T, Gellynck X (2008) Nutritional value of bread: influence of processing, food interaction and consumer perception. J Cereal Sci 48:243–257CrossRefGoogle Scholar
  27. 27.
    Heenan S, Dufour J-P, Hamid N, Harvey W, Delahunty C (2008) The sensory quality of fresh bread: descriptive attributes and consumer perceptions. Food Res Int 41:989–997CrossRefGoogle Scholar
  28. 28.
    University of Otago and Ministry of Health (2011) A focus on nutrition: key findings of the 2008/2009 New Zealand adult nutrition survey. Ministry of Health, WellingtonGoogle Scholar
  29. 29.
    Frost G, Dornhorst A (2000) The relevance of the glycaemic index to our understanding of dietary carbohydrates. Diab Med 17:336–345CrossRefGoogle Scholar
  30. 30.
    Wolever TMS, Vorster HH, Bjorck I, Brand-Miller J, Brighenti F, Mann JI, Ramdath DD, Granfeldt Y, Holt S, Perry TL, Venter C, Wu X (2003) Determination of the glycaemic index of foods: interlaboratory study. Eur J Clin Nutr 57:475–482CrossRefGoogle Scholar
  31. 31.
    Blundell J, de Graaf C, Hulshof T, Jebb S, Livingstone B, Lluch A, Mela D, Salah S, Schuring E, van der Knaap H, Westerterp M (2010) Appetite control: methodological aspects of the evaluation of foods. Obes Rev 11:251–270CrossRefGoogle Scholar
  32. 32.
    MacFie HJ, Bratchell N, Greenhoff K, Vallis LV (1989) Designs to balance the effect of presentation and first order carryover effects in hall test. J Sens Stud 4:129–148CrossRefGoogle Scholar
  33. 33.
    Venn BJ, Wallace AJ, Monro JA, Perry T, Brown R, Frampton C, Green TJ (2006) The glycemic load estimated from the glycemic index does not differ greatly from that measured using a standard curve in healthy volunteers. J Nutr 136:1377–1381Google Scholar
  34. 34.
    Williams SM, Venn BJ, Perry T, Brown R, Wallace A, Mann JI, Green TJ (2008) Another approach to estimating the reliability of glycaemic index. Br J Nutr 100:364–372CrossRefGoogle Scholar
  35. 35.
    O’Neil CE, Keast DR, Fulgoni VL, Nicklas TA (2010) Tree nut consumption improves nutrient intake and diet quality in US adults: an analysis of national health and nutrition examination survey (NHANES) 1999–2004. Asia Pac J Clin Nutr 19:142–150Google Scholar
  36. 36.
    O’Neil CE, Keast DR, Nicklas TA, Fulgoni VL (2011) Nut consumption is associated with decreased health risk factors for cardiovascular disease and metabolic syndrome in US adults: NHANES 1999–2004. J Am Coll Nutr 30:502–510CrossRefGoogle Scholar
  37. 37.
    Alper CM, Mattes RD (2002) Effects of chronic peanut consumption on energy balance and hedonics. Int J Obes Relat Metab Disord 26:1129–1137CrossRefGoogle Scholar
  38. 38.
    Bes-Rastrollo M, Sabate J, Gomez-Gracia E, Alonso A, Martinez JA, Martinez-Gonzalez MA (2007) Nut consumption and weight gain in a Mediterranean cohort: the SUN study. Obesity 15:107–116CrossRefGoogle Scholar
  39. 39.
    Bes-Rastrollo M, Wedick NM, Martinez-Gonzalez MA, Li TY, Sampson L, Hu FB (2009) Prospective study of nut consumption, long-term weight change, and obesity risk in women. Am J Clin Nutr 89:1913–1919CrossRefGoogle Scholar
  40. 40.
    Flores-Mateo G, Rojas-Rueda D, Basora J, Ros E, Salas-Salvadó J (2013) Nut intake and adiposity: meta-analysis of clinical trials. Am J Clin Nutr 97:1346–1355CrossRefGoogle Scholar
  41. 41.
    Hollis J, Mattes R (2007) Effect of chronic consumption of almonds on body weight in healthy humans. Br J Nutr 98:651–656CrossRefGoogle Scholar
  42. 42.
    Mattes RD, Kris-Etherton PM, Foster GD (2008) Impact of peanuts and tree nuts on body weight and healthy weight loss in adults. J Nutr 138:S1741–S1745Google Scholar
  43. 43.
    Tey SL, Brown R, Gray A, Chisholm A, Delahunty C (2011) Nuts improve diet quality compared to other energy-dense snacks while maintaining body weight. J Nutr Metab 2011:357350CrossRefGoogle Scholar
  44. 44.
    Kirkmeyer SV, Mattes RD (2000) Effects of food attributes on hunger and food intake. Int J Obes 24:1167–1175CrossRefGoogle Scholar
  45. 45.
    Tan SY, Mattes RD (2013) Appetitive, dietary and health effects of almonds consumed with meals or as snacks: a randomized, controlled trial. Eur J Clin Nutr 67:1205–1214CrossRefGoogle Scholar
  46. 46.
    Brennan AM, Sweeney LL, Liu X, Mantzoros CS (2010) Walnut consumption increases satiation but has no effect on insulin resistance or the metabolic profile over a 4-day period. Obesity 18:1176–1182CrossRefGoogle Scholar
  47. 47.
    Mori AM, Considine RV, Mattes RD (2011) Acute and second-meal effects of almond form in impaired glucose tolerant adults: a randomized crossover trial. Nutr Metab 8:6CrossRefGoogle Scholar
  48. 48.
    Fraser GE, Bennett HW, Jaceldo KB, Sabate J (2002) Effect on body weight of a free 76 kilojoule (320 calorie) daily supplement of almonds for six months. J Am Coll Nutr 21:275–283CrossRefGoogle Scholar
  49. 49.
    Griel AE, Eissenstat B, Juturu V, Hsieh G, Kris-Etherton PM (2004) Improved diet quality with peanut consumption. J Am Coll Nutr 23:660–668CrossRefGoogle Scholar
  50. 50.
    Hetherington MM, Bell A, Rolls BJ (2000) Effects of repeat consumption on pleasantness, preference and intake. Br Food J 102:507–521CrossRefGoogle Scholar
  51. 51.
    Hetherington MM, Pirie LM, Nabb S (2002) Stimulus satiation: effects of repeated exposure to foods on pleasantness and intake. Appetite 38:19–28CrossRefGoogle Scholar
  52. 52.
    Meiselman HL, de Graaf C, Lesher LL (2000) The effects of variety and monotony on food acceptance and intake at a midday meal. Physiol Behav 70:119–125CrossRefGoogle Scholar
  53. 53.
    Tey SL, Brown RC, Gray AR, Chisholm AW, Delahunty CM (2012) Long-term consumption of high energy-dense snack foods on sensory-specific satiety and intake. Am J Clin Nutr 95:1038–1047CrossRefGoogle Scholar
  54. 54.
    Tey SL, Gray AR, Chisholm AW, Delahunty CM, Brown RC (2013) The dose of hazelnuts influences acceptance and diet quality but not inflammatory markers and body composition in overweight and obese individuals. J Nutr 143:1254–1262CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Department of Human NutritionUniversity of OtagoDunedinNew Zealand
  2. 2.Department of Preventive and Social MedicineUniversity of OtagoDunedinNew Zealand
  3. 3.Clinical Nutrition Research CentreSingapore Institute for Clinical Sciences, A*STARSingaporeSingapore

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