ceasca cu cafea

Institutul pentru Informatii Stiintifice despre Cafea (Institute for Scientific Information on Coffee – ISIC) a lansat cel mai recent clip animat care explica stiinta din spatele efectelor cafelei asupra creierului. Acesta exploreaza rolul pe care cafeina il poate juca in ceea ce priveste starea de alerta si performanta, analizand insa si sensibilitatea individuala si nivelurile recomandate de consum.

„Informarea consumatorilor romani cu privire la cele mai noi studii legate de efectele benefice ale consumului moderat de cafea si a produselor din cafea ramane si in acest an unul dintre obiectivele Asociatiei Romane a Cafelei”, a declarat Marius Melesteu, Presedinte Asociatia Romana a Cafelei (ARC).

Cafeina este considerata a fi componenta principala a cafelei care are efecte asupra functionarii creierului. Studii cuprinzatoare au demonstrat efectele benefice ale cafeinei in alimentatie, aceasta imbunatatind atentia[1], starea de alerta[1] si performanta fizica[2].

Potrivit Autoritatii Europene pentru Siguranta Alimentara (European Food Safety Authoriy – EFSA), o portie de 75mg de cafeina ajuta la cresterea atentiei si starii de alerta[1]. Desi continutul de cafeina difera in functie de metoda de procesare si preparare, o ceasca obisnuita de cafea asigura 75-100mg[3 ] de cafeina.

Clipul animat ilustreaza modul in care, dupa consumul unei cesti de cafea, cafeina este absorbita in fluxul sanguin si transportata in tot corpul pana la creier. In creier se afla adenozina care actioneaza ca depresor al sistemului nervos central si ajuta la aparitia starii de oboseala[4]. Datorita unei structuri similare, cafeina se poate fixa de receptorii adenozinei, blocand actiunea acesteia, activand starea de alerta[4].

Studiile arata ca starea de alerta poate fi imbunatatita de consumul moderat de cafea si cafeina in situatiile care solicita concentrare sustinuta, cum ar fi condusul pe distante lungi[5] si pe timp de noapte[6], iar persoanele care lucreaza in ture sau sufera din cauza diferentei de fus orar isi pot imbunatati astfel eficient performanta[7].

Autoritatea Europeana pentru Siguranta Alimentara (EFSA) considera ca un consum de cafeina din toate sursele de pana la 400 mg pe zi (echivalentul a pana la 5 cesti de cafea) si doze unice de 200mg nu ridica probleme in ceea ce priveste siguranta adultilor din populatia generala[12]. Femeilor insarcinate si celor care alapteaza li se recomanda sa nu consume mai mult de 200mg de cafeina pe zi din toate sursele (2-3 cesti de cafea)[12].

Clipul video animat, ‘Coffee and its Effect on the Brain’ (Cafeaua si efectele acesteia asupra creierului), poate fi accesat AICI

Informatii suplimentare despre consumul de cafea si performanta mentala puteti gasi aici.

Despre Asociatia Romana a Cafelei (ARC)

Infiintata in martie 2001, Asociatia Romana a Cafelei (ARC) promoveaza interesele comerciale si economice ale industriei cafelei. Asociatia Romana a Cafelei sprijina crearea unei piete a cafelei competitive si transparente, astfel incat consumatorii romani sa beneficieze de o cafea de cea mai buna calitate, la cele mai bune preturi. ARC este deschisa tuturor societatilor comerciale active din industria cafelei din Romania. Membrii ARC sunt: Strauss Romania (www.strauss-group.com), Nestlé Romania SRL (www.nestle.ro) si Jacobs Douwe Egberts (www.jacobsdouweegberts.com).

Referinte:
1. EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) (2011) Scientific Opinion on the substantiation of health claims related to caffeine and increased fat oxidation leading to a reduction in body fat mass (ID 735, 1484), increased energy expenditure leading to a reduction in body weight (ID 1487), increased alertness (ID 736, 1101, 1187, 1485, 1491, 2063, 2103) and increased attention (ID 736, 1485, 1491, 2375) pursuant to Article 13(1) of Regulation (EC) No 1924/20061. EFSA Journal, 9(4):2054.
2. EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) (2011) Scientific Opinion on the substantiation of health claims related to caffeine and increase in physical performance during short-term high-intensity exercise (ID 737, 1486, 1489), increase in endurance performance (ID 737, 1486), increase in endurance capacity (ID 1488) and reduction in the rated perceived exertion/effort during exercise (ID 1488, 1490) pursuant to Article 13(1) of Regulation (EC) No 1924/2006. EFSA Journal, 9(4):2053.
3. Harland B.F. (2000) Caffeine and nutrition. Nutrition, 7/8:522-526.
4. Fredholm B.B. et al. (1999) Actions of caffeine in the brain with special reference to factors that contribute to its widespread use. Pharmacol Rev,51:83-133.
5. Sharwood L.N. et al. (2013) Use of caffeinated substances and risk of crashes in long distance drivers of commercial vehicles: case control study.BMJ, 346:1140.
6. Philip P. et al. (2006) The effects of coffee and napping on nighttime highway driving: a randomized trial. Ann Intern Med, 144:785-91.
7. Ker K. et al. (2010) Caffeine for the prevention of injuries and errors in shift workers. Cochrane Database Syst Rev, (5):CD008508.
8. Retey J.V. et al. (2007) A genetic variation in the adenosine A2A receptor gene (ADORA2A) contributes to individual sensitivity to caffeine effects on sleep. Clin Pharmacol Ther, 81:692–8.
cafea9. Byrne E.M. et al. (2012) A genome-wide association study of caffeine related sleep disturbance: confirmation of a role for a common variant in the adenosine receptor. Sleep, 35(7):967-75.
10. Robillard R. et al. (2015) Sleep is more sensitive to high doses of caffeine in the middle years of life. J Psychopharmacol, 29(6):688-97.
11. Clark I. & Landolt H.P. (2016) Coffee, Caffeine, and Sleep. Sleep Med Rev, published online ahead of print.
12. EFSA (2015) Scientific Opinion on the Safety of Caffeine. EFSA Journal, 13(5):4102.