This study is the first report of the potential of L. rhamnosus
GG and L. johnsonii La-1 as probiotics in fermented soy
products with yogurt cultures. These lactobacilli can compete
better with the yogurt strains in a soy beverage than in cows'
milk. Soy-based yogurt containing L. rhamnosus GG and
L. johnsonii La-1 are therefore possible.