Most ingested uranium is excreted during digestion. Still others are poisons if directly ingested or inhaled. Eggs are accidentally ingested from contaminated water or vegetables. This occurs when the larvae are accidentally ingested from contaminated food. These are ingested orally to provide fluoride systemically. Also, one must ascertain whether other substances were also ingested. Tyrosine is also ingested directly from dietary protein. Infection occurs when undercooked meat is ingested. It must be ingested from dietary sources. Bath salts can be ingested, snorted, smoked, or injected. Once it is ingested it develops into larvae stage. The gel from inside the patches is sometimes ingested or injected. Because they must be ingested, these are the essential amino acids. Organisms are then ingested by fish and other aquatic animals. These intermediates must be ingested, mostly from eating other organisms.