Avtor VB | Foto: stock.adobe.com 6:42 dop ZANIMIVO

Med 20 viri beljakovin za ljudi in planet zmagal tofu

Kateri vir beljakovin je najboljša izbira, če poleg prehranske vrednosti upoštevamo še ceno, dostopnost in vpliv na okolje?

Nova analiza 20 živil je na prvo mesto postavila tofu, medtem ko so se na dnu lestvice znašli predvsem meso in siri.

Novo metodo ocenjevanja, imenovano BPI Score, je razvil vedenjski znanstvenik dr. Chris Macdonald z Univerze v Cambridgeu, rezultate pa je objavil v znanstveni reviji Frontiers in Sustainable Food Systems. Gre za prvo različico sistema, zato avtor tudi sam opozarja na njegove omejitve.

Upoštevali so zdravje, ceno in okoljski odtis

Raziskovalec je 20 virov beljakovin ocenjeval v dveh glavnih kategorijah – vpliv na ljudi in vpliv na planet. Pri okoljskem delu je primerjal izpuste toplogrednih plinov, onesnaževanje voda ter porabo zemlje in sladke vode na 100 gramov beljakovin. Drugi del ocene je med drugim zajel nasičene maščobe, natrij, holesterol, aminokislinsko sestavo ter dostopnost in ceno živil.

Razlike so velike

Za 100 gramov beljakovin iz tofuja so bili ocenjeni izpusti približno 0,61 kilograma CO₂ ekvivalenta, pri govedini pa 64,19 kilograma. Tofu je pri okoljskem delu dosegel vseh 16 možnih točk.

Končni vrstni red je bil:

  1. tofu
  2. semena chia
  3. fižol
  4. kvinoja
  5. sončnična semena
  6. leča
  7. piščančje prsi
  8. tuna
  9. arašidi
  10. čičerika
  11. orehi
  12. brazilski oreščki
  13. losos
  14. jajca
  15. svinjski kotlet
  16. trska
  17. goveji zrezek
  18. jagnječji kotlet
  19. mocarela
  20. sir cheddar.

Rastlinski viri zasedli prvih šest mest

Tofu je skupno dosegel 36 točk, zadnjeuvrščeni cheddar pa 13. Posebej izstopa, da je prvih šest mest pripadlo rastlinskim živilom, med zadnjimi štirimi pa so bili izključno živalski proizvodi.

Rezultat seveda ne pomeni, da je tofu po vsakem posameznem prehranskem kriteriju »najbolj zdravo živilo«. Avtor jo predstavlja kot izhodišče za širše vrednotenje hrane, ne kot dokončno lestvico prehranske kakovosti.


Preberite tudi: Kako naša potrošnja vpliva na tropske gozdove?

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