1) Baceteria for the gut 
Lactobacillus acidophilus
<microbiology> Bacteria found in yogurt that help restore a supportive bacterial environment to an intestinal tract affected by disease and antibiotics. Ingesting acidophilus also may be useful in preventing candidiasis (thrush), including in the vagina. ... (13 Nov 1997) ... 
Acidophilus: Bacteria found in yogurt that can help restore a supportive bacterial environment to an intestinal tract whose normal intestinal bacterial population ('flora') has been disturbed by disease or antibiotics. Eating yogurt with acidophilus may also be useful in preventing candidiasis (thrush), including in the vagina.Common Misspellings: ...