Research conducted by the US Department of Health and Human Services in 2011 showed that there is an increase in the percentage of people using supplemental products in the US That is from 42% (1988-1994) at 53% (2003-2006). This shows that nowadays people tend to rely on those vitamin supplements that they believe are good for their health. According to the dictionary, supplement is defined as something that is added to complete something, make up for a deficiency, or strengthen or extend a whole. This simply means that people consume vitamin supplements to improve their health conditions. However, taking excessive amounts of vitamin supplements has negative effects on your health. Some of the negative effects of taking too many vitamin supplements include the appearance of unusual conditions, increased risk of contracting diseases, and having excess minerals in the body. The first negative effect of taking too many vitamin supplements is that they caused unusual conditions. Taking too many vitamins has caused adverse effects. For example, vitamin C is popular for treating the flu. However, excessive consumption of vitamin C has caused unusual conditions such as gastrointestinal irritation. This leads to diarrhea or vomiting, which then causes dehydration. Furthermore, excessive consumption of vitamin C also causes kidney stones. This is due to the breakdown of vitamin C into oxalate in our body. Too much oxalate in our body has caused some of it to turn into kidney stones. Taking excessive amounts of vitamin C can also worsen hemochromatosis conditions. Hemochromatosis is an inherited condition in which the body accumulates excessive amounts of iron. Therefore, you should always seek professional help when taking supplement products to prevent a...... middle of paper ......A., (2009). Uses, side effects, interactions and warnings. WebMD site. Retrieved May 24, 2014, from http://www.webmd.com/vitamins- supplements/ingredientmono-1001-Vitamin+C+VITAMIN+C+ ASCORBIC+ACID.aspx?activeIngredientId=1001&activeIngredient Name=Vitamin+C+(VITAMIN+C+ ( ASCORBIC+ACID)) Penniston KL, Tanumihardjo SA. The acute and chronic toxic effects of vitamin A. Am J Clin Nutr. 2006; 83:191-201.Robin, S. (2014). What nutrients are needed to absorb iron?. Healthy eating. Retrieved May 26, 2014, from http://healthyeating.sfgate.com/nutrients-needed-absorb-iron-3523.htmlU.S, American Cancer Society, (2012). Cancer.org website. Vitamin A, retinoids, and provitamin A carotenoids. Retrieved May 22, 2014, from http://www.cancer.org/treatment/treatmentsandsideeffects/ complementaryandalternativemedicine/herbsvitaminsandminerals/ vitamin-a-and-beta-carotene