?ndulcitorii artificiali, care contin putine calorii, ingrasa mai mult decat zaharul, potrivit unui studiu realizat recent in SUA. Desi majoritatea curelor de slabire cer consumarea indulcitorilor artificiali, cercetatorii spun ca zaharul ar fi totusi mai bun.
Explicatia ar fi ca gustul dulce comanda organismului sa se pregateasca pentru o cantitate mare de calorii. Pentru ca acest lucru nu se intampla, organismul devine confuz si cere mai multa hrana, ceea ce duce la cresterea in greutate.
‘Datele arata clar ca indulcitorii fara calorii, de tipul zaharinei, pot determina o crestere in greutate mai mare decat cea provocata de consumul de zahar’, spun specialistii americani. Acelasi efect il pot avea si alti indulcitori artificiali, de tipul aspartamului.
Cercetatorii de la Universitatea Purdue, din West Lafayette, Indiana, au hranit cativa cobai cu iaurt indulcit cu zaharina si alti cobai cu iaurt indulcit cu glucoza, care face parte din grupa zaharurilor naturale. Cei hraniti cu iaurt cu zaharina au castigat in greutate si in masa adipoasa.
Cercetarea a atras critici insa din parte industriei alimentare. ‘Studiul simplifica foarte mult cauzele obezitatii’, a spus Beth Hubrich, dietetician de la Calorie Control Council, un organism ce reprezinta mai multe companii de alimente si bauturi dietetice din Statele Unite. ‘Cauzele obezitatii sunt multifactoriale. Desi studiile au demonstrat ca utilizarea alimentelor „fara zahar” a crescut in ultimii ani, la fel s-au marit si portiile alimentelor si consumul de calorii, in timp ce sportul nu mai este practicat la fel de mult’, a adaugat acesta.
Consiliul mai este de parere ca studiile pe animale nu se pot aplica la oameni.
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