L reuteri 6 billion CFUs per day over 9 weeks yielded no adverse effects compared to placebo.
Jones ML, Martoni CJ, di Pietro E et al. Evaluation of clinical safety and tolerance of a Lactobacillus reuteri NCIMB 30242 supplement capsule: a randomized control trial. Regul Toxicol Pharmacol. 2012 Jul;63(2):313-20. doi: 10.1016/j.yrtph.2012.04.003.
L reuteri JBD30l metabolized fatty acids in the intestinal tract leading to modest weight loss over 12 weeks compared to placebo.
Chung HJ, Yu JG, Lee IA et al. Intestinal removal of free fatty acids from hosts by Lactobacilli for the treatment of obesity FEBS Open Bio. 2016 Jan; 6(1): 64–76.l
Gut colonization with L reuteri DSM 17938, 100 million CFUs per day for 28 days, was not associated with reduced infantile colic or reduction in intestinal inflammation.
Nation ML, Dunne EM, Joseph SJ et al. Impact of Lactobacillus reuteri colonization on gut microbiota, inflammation, and crying time in infant colic. Sci Rep. 2017 Nov 8;7(1):15047.
Lactobacillus ruteri DSM 17938, 400 million CFUs per day, reduced constipation and associated symptoms in adults.
Riezzo G, Orlando A, D’Attoma B et al. Randomised double blind placebo controlled trial on Lactobacillus reuteri DSM 17938: improvement in symptoms and bowel habit in functional constipation. Benef Microbes. 2018 Jan 29;9(1):51-60.
Lactobacillus reuteri DSM 17938, reduced methane breath levels significantly and yielded total disappearance in over half of participants.
Ojetti V, Petruzziello C, Migneco A et al. Effect of Lactobacillus reuteri (DSM 17938) on methane production in patients affected by functional constipation: a retrospective study. Eur Rev Med Pharmacol Sci. 2017 Apr;21(7):1702-08.
Lactobacillus reuteri DSM 17938, 200 million CFUs per day, yielded no reductions of gastrointestinal complaints, stress, or anxiety in healthy adults.
Ostlund-Lagerstrom L, Kihlgren A Repsilber D et al. Probiotic administration among free-living older adults: a double blinded, randomized, placebo-controlled clinical trial. Nutr J. 2016 Sep 10;15(1):80.
L reuteri, 200 million CFUs per day, strain unspecified, administration reduced measures of fatty liver, body weight, and waist circumference vs placebo.
Ferolla SM, Couto CA, Costa-Silva L et al. Beneficial Effect of Synbiotic Supplementation on Hepatic Steatosis and Anthropometric Parameters, But Not on Gut Permeability in a Population with Nonalcoholic Steatohepatitis. Nutrients. 2016 Jun 28;8(7).
Lactobacillus reuteri DSM 17938 reduced “functional abdominal pain” in children over 4 weeks.
Weizman Z, Abu-Abed J, Binsztok M. Lactobacillus reuteri DSM 17938 for the Management of Functional Abdominal Pain in Childhood: A Randomized, Double-Blind, Placebo-Controlled Trial. J Pediatr. 2016 Jul;174:160-164.e1.
Jorgensen MR, Keller MK, Kragelund C et al. Lactobacillus reuteri supplements do not affect salivary IgA or cytokine levels in healthy subjects: A randomized, double-blind, placebo-controlled, cross-over trial. Acta Odontol Scand. 2016 Jul;74(5):399-404.