Elikagai
Elikagaien aztarna
Dieta-aldaketa benetakoa eta neurgarria da. Halaber, kategoriaren barruko aldaerak kategoriaren arteko desberdintasunak baino maizago gainditzen duen arloa da, jendeari esaten zaiona.
Zer da sendoa
Aurkitutako emaitza metodologiarik ez duen argumentu guztietan irauten du: behi eta ardiak proteinaren unitate bakoitzeko askoz emisio handiagoak dituzte beste edozein produktuk baino, batez ere metano enterikoaren eta lurren erabileraren bidez. Esnea jarraitzen du. Gainerako guztia urrun dago.
Ingurumenari babesa ematen dioten dieten irreview [4] eta osasun eta jasangarritasunari buruz batera ebaluatutako dieta-patroien irreview [1] baieztatzen dute abereen produktuak murriztea dela dieta-aldaketa handiena, eta oro har osasun gomendioekin bat datorrela, ez haiekin kontraesanean.
Dieta-aldaketa eta emisioak
Non egiten den nahasgarria
Abereen mailaren azpian, sailkapen sinpleek apurtzen dira. Produktu zehatz baten bizitza-zikloaren ebaluazioak aurkitzen du kategoriaren barruko aldaerak maiz gainditzen duela kategoriaren arteko aldaera — inpaktua txikia den elikagai baten ekoizle handienak inpaktua handia den elikagai baten ekoizle txikienak gainditu ditzakete.
- Garraioa normalean txikia da. Elikagaien milak produktu gehienentzat termino txikia dira; ekoizpen metodoak nagusitzen dira. Airez garraiatutako ekoizpenak salbuespena da eta gutxitan etiketatuta dago.
- Tokikoa ez da automatikoki merkeagoa. Bertako berotutako berogailuaren ekoizpenak urruneko landare ekoizpenak eta bidalketak gainditu ditzake.
- Paketeak normalean txikiak dira elikagaien aldean, eta hondakinak saihestuz inpaktua murriztu dezakete.
- Hondakinak handiak dira. Botatako elikagaiek euren ekoizpen aztarna osoa eramaten dute eta ezer ez ematen.
- Denboraldiko eta berotutakoak tokikoak irabazten du. Erabilgarria den heuristika ez da distantzia, baizik eta hazteko metodoa.
Karbono etiketa
Elikagaien karbono etiketa aztertu da, eta aurkikuntzak gure elikagaien etiketa froga gunean estalitako nutrizio etiketa literaturarekin bat datoz: etiketek portaera apur bat aldatzen dute, ulermena desberdina da, eta ekoizleen berrantolaketa efektuak kontsumitzailearen efektua baino garrantzitsuagoa izan daiteke.
Zailtasun gehigarria da karbono irudia nutrizio irudia baino askoz estandarizatuagoa ez dela. Bi ekoizlek produktu berberarentzat zenbaki oso desberdinak kalkula ditzakete defenditzeko moduko metodoak erabiliz, eta horrek produktu arteko konparazioa etiketa adierazten duen baino arriskutsuagoa bihurtzen du.
Zer aldatzen du portaera
Aplikazioen bidezko dieta-interbentzioen meta-analisiak [3] eta mindfulness eta dieta jasangarriak [2] ohiko efektu txikiak aurkitzen dituzte. Faktore estrukturalek —menuan zer dagoen, begi mailan zer dagoen, zein den aukera lehenetsia — kontsumoa informazioak baino fidagarriago aldatzen dute.
Galdera ohikoak
Joan al naiz vegan?
Elikagaien milak garrantzitsuak al dira?
Tokikoa beti hobea al da?
Zer gertatzen da avena eta esnearen artean?
Erreferentziak
Hemen azpiko aipamen guztiak PubMed-en edo DOI bidezko jatorrizko peer-reviewed erregistroari lotzen diote. Hemen ez dago mediku aholkurik ordezkatzeko.
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Metabolic, adherence, and sustainability outcomes of plant-based low-carbohydrate and ketogenic diets: A systematic review of clinical evidence Mazzola G, Rondanelli M, Cabrini C, et al. · Nutrition (Burbank, Los Angeles County, Calif.) · 2026 · Systematic review DOIPubMed 42048756
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Mindfulness and sustainable diets: a meta-analysis and CO(2) emission savings scenarios Kosteletzky A, Thomas SM, Jochem C · Nutrition journal · 2026 · Meta-analysis DOIPubMed 42410600Full text
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The effectiveness of mobile app-based interventions in facilitating behaviour change towards healthier and more sustainable diets: a systematic review and meta-analysis Curtin E, Green R, Brown KA, et al. · The international journal of behavioral nutrition and physical activity · 2025 · Meta-analysis DOIPubMed 41035009Full text
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Impact of consuming an environmentally protective diet on micronutrients: a systematic literature review Leonard UM, Leydon CL, Arranz E, et al. · The American journal of clinical nutrition · 2024 · Systematic review DOIPubMed 38569787
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Aligning Environmental Sustainability, Health Outcomes, and Affordability in Diet Quality: A Systematic Review Leydon CL, Leonard UM, McCarthy SN, et al. · Advances in nutrition (Bethesda, Md.) · 2023 · Systematic review DOIPubMed 37532100Full text
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The Impacts of Dietary Change on Greenhouse Gas Emissions, Land Use, Water Use, and Health: A Systematic Review Aleksandrowicz L, Green R, Joy EJ, et al. · PloS one · 2016 · Systematic review DOIPubMed 27812156Full text
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Changing the default meal option at university events to reduce harmful environmental impacts: Six randomized controlled trials Zhang AW, Wharton C, Cloonan S, et al. · Appetite · 2024 · Randomised controlled trial DOIPubMed 38908405
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Ex-ante life cycle assessment of commercial-scale cultivated meat production in 2030 Sinke P, Swartz E, Sanctorum H, et al. · The International Journal of Life Cycle Assessment · 2023 · Journal article DOI
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The effect of an app-based dietary intervention on diet-related greenhouse gas emissions - results from a randomized controlled trial Pitt S, Sjöblom L, Bälter K, et al. · The international journal of behavioral nutrition and physical activity · 2023 · Randomised controlled trial DOIPubMed 37821876Full text
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Splanchnic utilization of enteral alanine in humans Battezzati A, Haisch M, Brillon DJ, et al. · Metabolism: clinical and experimental · 1999 · Randomised controlled trial DOIPubMed 10421236
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Effect of lactic acid isomers on keratinocyte ceramide synthesis, stratum corneum lipid levels and stratum corneum barrier function Rawlings AV, Davies A, Carlomusto M, et al. · Archives of dermatological research · 1996 · Randomised controlled trial DOIPubMed 8818186
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Consumer perceptions of healthy and sustainable eating Hazley D, Kearney JM · The Proceedings of the Nutrition Society · 2024 · Review DOIPubMed 39233445
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Moving towards more sustainable diets: Is there potential for a personalised approach in practice? Davies KP, Gibney ER, O'Sullivan AM · Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2023 · Review DOIPubMed 37545042
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A bibliometric review on carbon accounting in social science during 1997-2020 Zheng Y, Yu H, Zhang Y · Environmental science and pollution research international · 2022 · Review DOIPubMed 34853997
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A taste of the new ReCiPe for life cycle assessment: consequences of the updated impact assessment method on food product LCAs Dekker E, Zijp M, van de Kamp M, et al. · The International Journal of Life Cycle Assessment · 2019 · Journal article DOI
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Cardiovascular applications of hyperpolarized contrast media and metabolic tracers Bhattacharya P, Ross BD, Bünger R · Experimental biology and medicine (Maywood, N.J.) · 2009 · Review DOIPubMed 19934362
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Methods for measuring gluconeogenesis in vivo Previs SF, Brunengraber H · Current opinion in clinical nutrition and metabolic care · 1998 · Review DOIPubMed 10565394
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Life cycle assessment of industrial-scale cultivated meat production: case study of real market entry via pet food application Stieberová B, Žilka M, Bubeníček P, et al. · The International Journal of Life Cycle Assessment · 2026 · Journal article DOI
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Cradle-to-grave life-cycle assessment of sustainable packaging for dairy products Atkare A, Li M, Saha N, et al. · Sustainable Food Technology · 2026 · Journal article DOI
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Edible collagen coatings from chicken skin for longer shelf life of meat and dairy food systems Krasulya O, Giro T, Tinambunan D · Foods and Raw Materials · 2026 · Journal article DOI
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Comparative Life Cycle Assessment of Aquafaba: Applications in the Food and Cosmetic Sectors and Comparison with Conventional Alternatives Rossi E, Bassi G, Cespi D, et al. · Environments · 2026 · Journal article DOI
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Life cycle sustainability assessment of an agricultural product in rural areas of Western Nepal—case study of goat meat Usva K, Bhattarai I, Abdulkareem M, et al. · The International Journal of Life Cycle Assessment · 2025 · Journal article DOI
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ISO 14075 and social sustainability: balancing organizational and product approaches in Social Life Cycle Assessment Tsalidis G · The International Journal of Life Cycle Assessment · 2025 · Journal article DOI
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Decarbonizing Agricultural Buildings: A Life-Cycle Carbon Emissions Assessment of Dairy Barns Liu H, Wang Z, Du X, et al. · Agriculture · 2025 · Journal article DOI
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Towards an Application of the Life Cycle Assessment Framework for GHG Emissions of the Dairy System: A Literature Review Baker F, Axon S · Land · 2025 · Journal article DOI
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Plant-Based Diet Indices with Greenhouse Gas Emissions and Risk of Cardiometabolic Diseases and All-Cause Mortality: Longitudinal China Cohort Study Lv Y, Wu M, Liu W, et al. · Nutrients · 2025 · Journal article DOIPubMed 40218910Full text
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Novel animal product substitutes: A new category of plant‐based alternatives to meat, seafood, egg, and dairy products McClements D · Comprehensive Reviews in Food Science and Food Safety · 2024 · Journal article DOI
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A comparative nutritional life cycle assessment of processed and unprocessed soy-based meat and milk alternatives including protein quality adjustment Herrmann M, Mehner E, Egger L, et al. · Frontiers in Sustainable Food Systems · 2024 · Journal article DOI
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Life Cycle Environmental Impacts and Health Effects of Protein-Rich Food as Meat Alternatives: A Review Cellura M, Cusenza M, Longo S, et al. · Sustainability · 2022 · Journal article DOI
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Evaluating sustainable product alternatives by combining life cycle assessment with full-cost accounting: A highway guardrail case study Scouse A, Kelley S, Venditti R, et al. · BioResources · 2020 · Journal article DOI