A poor diet that lacks essential nutrients generally causes nutritional deficiencies. The body stores nutrients. Therefore, a deficiency is usually detected after a prolonged lack of a nutrient. A number of diseases and conditionsâincluding colon cancer and gastrointestinal conditionsâcan lead to an iron deficiency.
Iodine is LIKELY SAFE for most people when taken by mouth at recommended amounts or when applied to the skin appropriately using approved products. Iodine can cause significant side effects in some people. Common side effects include nausea and stomach pain, runny nose, headache, metallic taste, and diarrhea.
The earliest symptoms of magnesium toxicity are often gastrointestinal. Magnesium acts as a laxative, and diarrhea is frequently the first symptom of too much magnesium intake. Additional gastrointestinal symptoms might also occur, such as stomach upset, nausea, vomiting and abdominal cramping.