Scientific studies have shown that fluoride can lead to disorders in the normal functioning of the thyroid gland, bone damage (not only in young children, but also in adults), destruction of the adrenal glands and the pancreas. It also leads to skin discolouration (pimples and spots) and allergies in children. It is not recommended by dentists to brush teeth with fluoride toothpaste, as various types of discolouration can develop on the teeth. Fluoride, which accumulates in the bones, also leads to a blocking of the absorption of magnesium by the body. It is particularly dangerous for pregnant women, as it has the ability to cross the placenta and do irreversible damage to the foetus.

Recent studies show that fluoride leads to osteoporosis, spinal deformities, brain lesions and joint problems. Importantly, it has a very detrimental effect on the immune system in children, can lead to chronic fatigue, learning problems and even depression.