Probiotics for Kids infections

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The probiotic, Lactobacillus GG (LGG) can decrease the risk of upper respiratory tract infections including rhinitis, pharyngitis, sinusitis, otitis, and the common cold in children attending day care centres, claims a new study.

The findings of the researchers, which were published in the Journal of Clinical Nutrition, also found that the rate of absence from childcare centres due to infections was lower in children receiving LGG in comparison to those who were not.

According to UNICEF, a global average of 16 per cent of children under five suffer from acute respiratory infections.

The team behind the research explained that while the efficacy of probiotics in the prevention of infections in children who attend day care centres has been investigated in several studies, these have yielded contradictory results, and thus further studies are required to evaluate their efficacy.

Method

The researchers said the objective of their study was to investigate whether LGG administration could play a beneficial role in the prevention of both gastrointestinal and respiratory tract infections in children who attend day care centres.

They said that they undertook a randomized, double-blind, placebo-controlled trial in 281 children who attend day care centres in Zagreb, Croatia.

According to the authors, the children were randomly allocated to receive LGG at a dose of 109 colony-forming units (CFU) in 100 ml of a fermented milk product or placebo that was the same post-pasteurized fermented milk product without LGG over a period of three months.

139 received the LGG supplemented fermented milk product and 142 received the placebo product, they added.

Control

The scientists stated that the children were not allowed to consume any other product containing probiotics or prebiotics during the intervention, and they reported that the study started in November and finished in February to coincide with period when the majority of infections occur.

They added that the milk products were tested every two weeks to prove stability and concentration of the LGG, and both the research staff and children were unaware of the real nature of the product.

Moreover, the study investigators said that every ten days contacted parents to find out whether their child had developed any infections or side effects: “Infections were diagnosed by local general practitioners, who were responsible for the care of each child. They were asked to record details of all infections that the child experienced during the intervention period.”

Results

The authors found that, compared to the placebo group, children in the LGG group had a significantly reduced risk of upper respiratory tract, a reduced risk of respiratory tract infections lasting longer than three days, which they say has not been shown by previous studies, and a significantly lower number of days with respiratory symptoms.

However, they noted that there was no risk reduction in regard to lower respiratory tract infections as a result of the consumption of the LGG.

And they found that children in the LGG group had no significant reduction in the risk of gastrointestinal infections, vomiting episodes, and diarrheal episodes and no reduction in the number of days with gastrointestinal symptoms compared to the placebo cohort.

Limitations

The researchers also noted limitations to their study in terms of the fact that diagnosis and treatment of then children was based on clinical judgment, and secondly the rate of severe infections was very low and, therefore, no clear effect of LGG could be proven.

They also reported that as they study was conducted during the winter period, the season (summer) with highest risk of gastrointestinal infections was missed.

Valid approach

Nevertheless, the authors conclude that “considering the significant decrease in the number of upper respiratory tract infections in children treated with LGG and knowing that the number needing treatment (NNT) was only five, we can recommend treatment with LGG as a valid measure for the prevention of upper respiratory tract infections in children who attend day care centres.”

Source: Journal of Clinical Nutrition, http://www.nutraingredients-usa.com/Research/Probiotics-intake-beneficial-against-infections-in-kids-study

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