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People Who Eat Healthy Diet Don’t Benefit Much From Probiotic Supplements

March 14, 2017: 12:00 AM EST
New findings from Australian research suggest that supplementing a healthy diet with probiotics may do more harm than good. Rats in the study were fed either a healthy diet or one high in saturated fat and sugar, both with a probiotic supplement. The probiotics improved the bacterial make-up in the “grossly disregulated” digestive tract of obese rats eating the junk food diet. They also improved brain function: spatial memory loss was prevented. Not so for the rats on the healthy diet. The probiotics had almost no impact on microbial diversity and actually impaired recognition memory.
J. E. Beilharz et al., "Cafeteria diet and probiotic therapy: cross talk among memory, neuroplasticity, serotonin receptors and gut microbiota in the rat. ", Molecular Psychiatry, March 14, 2017, © Macmillan Publishers Limited
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