Fluoride........... Absorption of Fluoride:

Absorption of Fluoride:

Most fluorides are absorbed rapidly and transported in the body and subsequently excreted as the fluoride is absorbed. The main factors influencing absorption are species variation, concentration of fluorides ingested, solubility and degree of ionization of the compounds, and other dietary constituents such as calcium, which may from insoluble sales with fluoride. The rate of absorption  increases with starvation and presence of fats. The presence of calcium magnesium  and aluminum decrease absorption. A comparison of rates of absorption of fluoride in  milk and water indicates a significant reduction in fluoride absorption from milk during the first hour, but thereafter absorption continued at higher levels for longer periods of time.

Effects of fluoride:

Excess consumption of fluoride leeds to certain health problems like Dental  fluorosis and skeletal fluorosis.

Excessive ingestion of fluoride during the early childhood years may damage the tooth forming cells, leading to a defect in the enamel known as dental fluorosis

Excessive exposure to fluoride causes an arthrtiic bone disease called skeletal fluorosis