Grade: C (Unclear or Conflicting Scientific Evidence)
Therapy	Specific therapeutic Use(s)
Psyllium	Gas (flatulence)
Traditional or Theoretical Uses which Lack Sufficient Evidence
Therapy	Specific therapeutic Use(s)
Agave	Flatulence (gas)
Allspice	Gas
Alpinia	Flatulence (gas)
American pennyroyal	Gas
Anise	Carminative (promotes digestion)
Asarum	Flatulence (gas)
Bay leaf	Carminative (promotes digestion)
Betel nut	Gas
Betony	Carminative (digestive aid)
Bitter orange	Flatulence (gas)
Boneset	Carminative (digestive aid)
Boswellia	Belching
Buchu	Carminative (reduces gas)
Capers	Gas
Cardamom	Carminative (digestive aid)
Chaparral	Gas
Chasteberry	Flatulence (gas)
Clove	Gas
Coleus	Gas
Dandelion	Gas
Dong quai	Flatulence (gas)
Fennel	Flatulence (gas)
Fenugreek	Gas
Garcinia	Carminative (reduces gas)
Ginger	Flatulence (gas)
Goldenrod	Carminative (reduces gas)
Goldenseal	Flatulence (gas)
Green tea	Flatulence
Holy basil	Carminative (digestive aid)
Horseradish	Carminative (relieves gas)
Hyssop	Carminative (digestive aid)
Ignatia	Belching
Jointed flatsedge	Carminative (digestive aid)
Juniper	Carminative
Lavender	Gas
Lemon balm	Flatulence
Lovage	Carminative
Mugwort	Carminative (digestive aid)
Oregano	Carminative
Peppermint	Gas (flatulence)
Saccharomyces boulardii	Flatulence (gas)
Star anise	Flatulence (gas)
Thyme	Flatulence (gas)
Tribulus	Flatulence (gas)
Turmeric	Gas
Valerian	Flatulence (gas)
White horehound	Flatulence
Wild yam	Carminative (prevents gas)