Increased Acetylcholine Levels
| Supplement | Research Paper | Effect Type | Effect Size |
|---|---|---|---|
| Bifidobacterium bifidum | 10.1007/s12031-021-01812-y | Beneficial | Large |
| Bifidobacterium bifidum MAK53B66B | 10.1007/s12031-021-01812-y | Beneficial | Large |
| Bifidobacterium plantarum | 10.1007/s12031-021-01812-y | Beneficial | Large |