Related by context. Frequent words. (Click for all words.) 73 intestinal bacteria 71 gut bacteria 64 metabolic processes 60 metabolic pathways 59 metabolism 57 probiotic bacteria 57 proteins 57 thyroid hormones 56 lipids 56 biochemical processes 56 digestive tracts 56 nutrients 56 metabolic 56 genetic variation 55 glutamine 55 parasitic worms 55 enzymes 55 organism 55 genes 55 digestive enzymes 55 protein 55 intestinal tract 55 mitochondrial function 55 biochemical pathways 54 phenotype 54 amino acid 54 immune cells 54 dietary restriction 54 homeostasis 54 microorganisms 53 Lactobacillus 53 calcium absorption 53 lipid metabolism 53 organisms 53 innate immune system 53 neurones 53 genetic makeup 53 bacterium 53 circadian rhythms 53 bioactivity 53 circadian rhythm 53 prebiotics 53 bacteria 53 fatty acids 53 thyroid hormone 53 roundworms 53 immune responses 52 signaling pathways 52 digestive tract 52 carotenoids 52 yeast cells 52 thyroid function 52 digestive 52 systemic inflammation 52 orexin 52 enzyme 52 molecular pathways 52 airway inflammation 52 genetic susceptibility 52 germ cells 52 secretions 52 glutathione 52 cell membranes 52 metabolisms 52 bacterial 52 innate immunity 52 retinoic acid 52 rumen 51 digestion 51 neuroendocrine 51 insulin secretion 51 microbes 51 bacterial strains 51 mitochondria 51 micronutrients 51 probiotics 51 circadian clock 51 oxidants 51 gene expression patterns 51 H. pylori 51 mammalian cells 51 prion protein 51 autophagy 51 tumorigenesis 51 pathogenic bacteria 51 signaling molecule 51 parasites 51 estrogens 51 GI tract 51 molecular mechanism 51 telomere length 51 gene 51 gene expression 51 hormone insulin 51 gastrointestinal tract 51 amino acids 51 dopamine neurons 51 sterols 50 phenylalanine 50 mutations 50 metabolically