| Jet (mineral) |
| Johnsons Suncare SPF20 |
| Jonesia Asoka |
| Juglans Cin |
| Juglans Regia (Nux Juglans) |
| Jumping spider (Salticus scenicus) |
| Jumping spider (see also Portia) |
| Juncus Effusus |
| Juniperus Comm |
| Juniperus Sabina (Sabina) |
| Juniperus Virg |
| Justicia Adhatoda |
| Justicia Rub |
| |
| Kali Acet |
| Kali Arsen |
| Kali Benz (E212) |
| Kali Bich |
| Kali Brom |
| Kali Carb |
| Kali Chlor |
| Kali Cyan |
| Kali Ferrocyan (Kali Ferrum) |
| Kali Fluor |
| Kali Hypophos |
| Kali Iod |
| Kali Lact |
| Kali Mur |
| Kali Nit |
| Kali Permang |
| Kali Phos |
| Kali Sil |
| Kali Sulph |
| Kali Tart |
| Kali Telluricum |
| Kalmia Latifolia |
| Kamala |
| Kaolin |
| Karaka (Kopi, Corynocarpus Laevigatus) |
| Karlsbad Salz (Carlsbad) |
| Karwinskia Humb |
| Kauri (Agathis Australis) |
| Kelp Antarctic (Durvillaea Antarctica) |
| Kelp Gull (Larus Dominicanus) |
| Kennel Cough Mix (Bry/Phos/Dros) |
| Kestrel (Falco Tinnunculus) |
| Ketoglutaric Acid(Acid Ketoglutaric,alpha-KG) |
| Kidney |
| Kigelia Africana |
| Killer Whale (Orcinus orca) |
| King Orchid (Thelychiton Speciosum) |
| Kingfisher (Alcedo atthis) |
| Kite (Bird, See Milvus) |
| Kiwifruit (Actinidia chinensis) |
| Klebsiella Pneum |
| Knee, Arthritic (see OAN) |
| Koala Bear (Phascolarctos cinereus) |
| Kochbrunnenwasser (Wiesbadener Aqua) |
| Koch's Lymph (Glyoxalide) |
| Kola (Sterculia Acum) |
| Komodo Dragon (Varanus komo) |
| Kopi (Karaka, Corynocarpus Laevigatus) |
| Kousso (Bayera Anthelmintica) |
| Krait (Bungarus Fasciatus) |
| Kramaria (Ratanhia) |
| Kreosotum |
| Krill (Antarctic, Euphausia Superba) |
| Krypton |
| Kurchi (Holarrhena Ant) |