Dietary supplements can be deemed unsafe due to several factors. These can include the presence of contaminants, undisclosed ingredients, or excessive levels of certain compounds. Contaminants such as heavy metals, pesticides, and microbial pathogens can inadvertently enter the supplement during manufacturing. Undisclosed ingredients, often found in supplements claiming fast results, can pose significant health risks. Furthermore, excessive intake of certain vitamins or minerals can lead to toxicity, causing adverse health effects.
