Higashikawa, F., Noda, M., Awaya, T., Nomura, K., Oku, H., & Sugiyama, M. (2010). Improvement of constipation and liver function by plant-derived lactic acid bacteria: A double-blind, randomized trial. Nutrition, 26, 367–374.doi: 10.1016/j.nut.2009.05.008
To evaluate the effects of yogurts made with different types of lactic acid bacteria (LAB) on the gastrointestinal system.
Participants were recruited via advertisement. Consenting patients were assigned using stratified randomization by defecation frequencies to receive one of three types of yogurt.
Participants consumed 100 g of yogurt daily for a six-week period. Data were collected from clinic visits at two-week intervals.
This was a randomized, double-blind study.
Bristol Stool Form Scale
In healthy adults, Lb. plantarum SN13T may improve serum lipid levels and liver function. Actual effects in relieving constipation are unclear.
Effects in relieving constipation are unclear in healthy adults. Additional studies are warranted that include a larger sample and patients with cancer.