As we get closer to understanding the potential mechanisms by which particular probiotic organisms interact with the microbiota, it will be a missed opportunity if the quality of probiotic research studies does not improve to meet the needs for either evidence-based medicine or nutrition.
Actually, there's no tangible evidence for either.
Let's face it: despite their seductive allure, we have no direct observational evidence for either the infinitely big or the infinitely small.
The space ape idea is deliberately ridiculous – but no more so than the aquatic ape scheme, the reason being that there is absolutely no evidence for either.
There is a theory that the impostor is based in California and it may be a woman and not a man, but there is no real evidence for either as far as I am aware.
But archaeologists have been unable to find convincing evidence for either the flood or the Xia dynasty itself. .
The use of this non-native wood in the burial provides evidence for either the import of foreign lumber or the utilisation of driftwood, most likely originating from Russia/Siberia.
The third possibility is that there is insufficient evidence for either a criminal investigation or internal disciplinary measures.
No evidence for either a cytotoxic or an immunosuppressive influence of such sera was demonstrable.
They are compatible with bias, or at least partly with causation, but do not give firm evidence for either.
More recent data did not provide evidence for either a high risk for complications or a link between PAC use and death.
