The best evidence lies with probiotics supplementation in mothers and infants in preventing development and reducing severity of AD .
Specifically , Lactobacillus rhamnosus GG was effective in long-term prevention of AD development .
γ-Linolenic acid reduced severity of AD .
Supplementation with prebiotics and black currant seed oil ( γ-linolenic acid and ω-3 combination ) was effective in reducing the development of AD .
Certain types of nutrient supplementation are beneficial in preventing AD development and reducing its severity .
OBJECTIVE To identify whether nutrient supplementation with probiotics , prebiotics , formula , or fatty acids prevents the development of  atopic dermatitis ( AD ) or reduces the severity of AD in newborns to children younger than 3 years .
A differential effect of 2 probiotics in the prevention of eczema and atopy: a double-blind, randomized, placebo-controlled trial.
BACKGROUND The role of probiotics in prevention of allergic disease is still not clearly established , although early reports suggested Lactobacillus GG halved the risk of eczema at 2 years . OBJECTIVE To determine whether probiotic supplementation in early life could prevent development of eczema and atopy at 2 years . METHODS Double-blind , r and omized placebo-controlled trial of infants at risk of allergic disease . Pregnant women were r and omized to take Lactobacillus rhamnosus HN001 ( L rhamnosus ) , Bifidobacterium animalis subsp lactis strain HN019 or placebo daily from 35 weeks gestation until 6 months if breast-feeding , and their infants were r and omized to receive the same treatment from birth to 2 years ( n = 474 ) . The infant 's cumulative prevalence of eczema and point prevalence of atopy , using skin prick tests to common allergens , was assessed at 2 years . RESULTS Infants receiving L rhamnosus had a significantly ( P = .01 ) reduced risk of eczema ( hazard ratio [ HR ] , 0.51 ; 95 % CI , 0.30 - 0.85 ) compared with placebo , but this was not the case for B animalis subsp lactis ( HR , 0.90 ; 95 % CI , 0.58 - 1.41 ) . There was no significant effect of L rhamnosus ( HR , 0.74 ; 95 % CI , 0.46 - 1.18 ) or B animalis subsp lactis ( HR , 0.82 ; 95 % CI , 0.52 - 1.28 ) on atopy . L rhamnosus ( 71.5 % ) was more likely than B animalis subsp lactis ( 22.6 % ) to be present in the feces at 3 months , although detection rates were similar by 24 months . CONCLUSION We found that supplementation with L rhamnosus , but not B animalis subsp lactis , substantially reduced the cumulative prevalence of eczema , but not atopy , by 2 years . Underst and ing how Lactobacilli act to prevent eczema requires further investigation
The best evidence lies with probiotics supplementation in mothers and infants in preventing development and reducing severity of AD .
Specifically , Lactobacillus rhamnosus GG was effective in long-term prevention of AD development .
γ-Linolenic acid reduced severity of AD .
Supplementation with prebiotics and black currant seed oil ( γ-linolenic acid and ω-3 combination ) was effective in reducing the development of AD .
Certain types of nutrient supplementation are beneficial in preventing AD development and reducing its severity .
OBJECTIVE To identify whether nutrient supplementation with probiotics , prebiotics , formula , or fatty acids prevents the development of  atopic dermatitis ( AD ) or reduces the severity of AD in newborns to children younger than 3 years .