As long as your skin and eyes aren’t taking on an orange hue, you’re probably fine! For this reason, pregnant and lactating women should avoid taking more than 3 milligrams a day of beta carotene supplement a day without a doctor's explicit advice. All are great sources of vitamin A, but could I be getting too much? Supplements: Check the Dose. and Terms of Use The material appearing on LIVESTRONG.COM is for educational use only. It's also in most fruits and vegetables, mostly in the form of carotenoids. 900 for males, 700 for females. While we hear the most about vitamin K1 and K2, there are actually a bunch of different compounds that fall into the “vitamin K” category. 19+ years/breast-feeding females. In addition, taking 20 to 30 milligrams per day of beta carotene supplements for several years can lead to increased risks of lung cancer in people who smoke or are exposed to asbestos. Many multivitamins contain vitamin A. Potential consequences of long-term overconsumption include central nervous system problems, liver abnormalities, birth defects and a reduction in bone density that can lead to the disorder called osteoporosis. Certainly this excess is not causing your skin to fall away, but it may be increasing your risk for osteoporosis. We have seen patients at the Arizona Center clinic who come in … Roughly 26 percent of the vitamin A in American men's diets also comes from these sources. LIVESTRONG is a registered trademark of the LIVESTRONG Foundation. While use of beta carotene is not linked to birth defects, the effects of high doses of this carotenoid during and after pregnancy are not well studied. However, too much vitamin A or hypervitaminosis A can lead to serious toxicity. Ways to boost your Vitamin D levels. Pro-vitamin A, on the other hand, comes from plant sources, including the ones you mentioned. However, consuming large quantities of carotenoids can cause temporary and harmless discoloration of the skin. Hence, excessive consumption of vitamin D supplements can cause bone loss. If you take more than 2,000mg of vitamin C, it can lead to negative side effects like abdominal pain, nausea, and headaches. Roughly 34 percent of the vitamin A in American women's diets comes from carotenoid sources such as carrots, tomatoes, peppers and peas. If you take more than 2,000mg of vitamin C, it can lead to negative side effects like abdominal pain, nausea, and headaches. But, vitamin B3 supplementation is a different story. Her advice is regularly featured on the TODAY show, Dr. Oz, NPR, and in the nation's leading newspapers, magazines, and websites. But knowing whether you’re getting enough, or too much, can be tricky. M. Gideon Hoyle is a writer living outside of Houston. Symptoms arise as a result of altered bone metabolism and altered metabolism of other fat-soluble vitamins. Pre-formed vitamin A is found in animal sources like fish oil, liver, and (to a lesser extent) milk and eggs. Certain forms of cholecalciferol may contain ingredients you should know about, such as peanut or soybean oil, sugar, aspartame (phenylalanine), or certain food dyes. It can cause you to bleed too much. But, on the other side, can taking too much vitamin D harm you? In the U.S., deficiency is mor… It is definitely possible to get too much of this form of vitamin A, especially if you’re taking a lot of dietary supplements. Pre-formed vitamin A is found in animal sources like fish oil, liver, and (to a lesser extent) milk and eggs. Deficiency in vitamin A can lead to serious conditions, especially blindness. The Importance of Vitamin A. Vitamin A is important for good vision, skin, and immune function, healthy babies, and overall health. 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