Vitamin D is an essential nutrient that supports immune function, and heart, bone, muscle and nerve health. Vitamin D can be made in your body from sunlight, but it is also found in salmon, egg yolks and supplements. Too much vitamin D can cause severe symptoms such as nausea, vomiting and kidney stones. <\/p>\n
Many people supplement with vitamin D, especially during the colder months when it\u2019s more difficult to get your daily dose from sunlight (since your skin makes vitamin D<\/a> with sufficient sunlight exposure). But can you take too much vitamin D? How do you know when it\u2019s too much? And could you actually die from taking too much?\n<\/p>\n What Is Vitamin D? <\/p>\n Vitamin D is a fat-soluble vitamin<\/a> that\u2019s necessary for good health in general but also for several specific functions in your body. You may have noticed that some milks tend to be fortified with vitamin D. This is because vitamin D helps your body absorb calcium, which is necessary to build strong bones. Vitamin D also supports muscle and nerve function, heart health and immunity.\u00a0\n<\/p>\n Certain conditions can precipitate vitamin D deficiency<\/a>, including aging, osteoporosis, neurological diseases, malabsorption disorders, kidney and liver diseases, depression, pregnancy and rickets.\n<\/p>\n Your skin makes vitamin D when exposed to sunlight\u2014but enough of your skin needs to be exposed and it needs to be for a long enough period. Even if you have enough skin exposure, certain things can shield your skin from absorbing enough sunlight, including pollution, sunscreen and melanin content (darker skin tends to not absorb sunlight as well as lighter skin, as darker skin provides protection from UV rays). Even what latitude you\u2019re at and what season it is will influence your UV absorption and vitamin D production.\n<\/p>\n How Much Vitamin D Do You Need? <\/p>\n This amount depends on your age. Recommendations start at 25 mcg (1,000 IU) for newborns and go up to 100 mcg (4,000 IU) for adults. It\u2019s important to note that these are recommended daily vitamin D intakes and include vitamin D from all sources\u2014like food and beverages\u2014not just supplements.\u00a0\n<\/p>\n Sun exposure for adequate vitamin D production might be less than you think. Research suggests you can get enough vitamin D by exposing your arms and legs to sunlight (without clothing or sunscreen) at midday (between 10 a.m. and 4 p.m.) for 5 to 30 minutes at least twice a week.\n<\/p>\n Besides sunlight and supplements, vitamin D is also found in some foods<\/a>. It naturally occurs in egg yolks, mushrooms that have been exposed to UV light, and fatty fish like salmon, tuna and sardines. Some foods are also fortified with vitamin D, including milk, cereal and juice.\u00a0\n<\/p>\n Can You Die from Too Much Vitamin D? <\/p>\n The short answer is yes, you can die from too much vitamin D.\u00a0\n<\/p>\n Many cases of vitamin D toxicity start as vitamin D deficiency<\/a>. In analyzing the data, researchers found that people who were deficient in vitamin D\u2014or presumed to be deficient based on living in colder regions\u2014took vitamin D supplements in doses that were higher than what is recommended. Or the dose they supplemented with, combined with foods containing vitamin D, put them over the limit.\n<\/p>\n Typically, this type of toxicity happens over time, as opposed to overdosing all at once with the vitamin. \u201cUnlike other vitamins, vitamin D acts like a hormone, so an excess of it in your body can lead to other health problems, such as hypercalcemia (high levels of calcium in your blood),\u201d explains Maria Laura Haddad-Garcia<\/a>, editorial manager, nutrition and news, at EatingWell. \u201cThis buildup of vitamin D in your body may happen when you take very high doses of vitamin D for several months. Additionally, since vitamin D is fat-soluble, your body can’t get rid of it like it does with water-soluble vitamins.\u201d\n<\/p>\n It\u2019s important to note that vitamin D toxicity does not occur with sun exposure, as the body limits how much vitamin D it makes from UV light. With that said, too much sun exposure carries other risks, including sunburn and skin cancer, so it\u2019s still important to take proper precautions to avoid these risks. Keep in mind, though, that for the body to produce enough vitamin D, you do need some sun exposure without sunscreen.\u00a0\n<\/p>\n Warning Signs of Vitamin D Toxicity <\/p>\n Before vitamin D toxicity occurs, there are warning signs, these include:\n<\/p>\n NauseaVomitingMuscle weaknessConfusionPainLoss of appetiteDehydrationExcessive urinationThirstKidney stones<\/p>\n If it\u2019s not caught in time, vitamin D toxicity can progress to kidney failure, irregular heartbeat and eventually, death.\u00a0If you\u2019re taking vitamin D and are experiencing any of the warning signs, it\u2019s important to stop supplementing and see a health care professional.\u00a0\n<\/p>\n Our Expert Take <\/p>\n Vitamin D is a necessary nutrient for many functions in our bodies and for overall good health. And like anything else, too much of a good thing is too much. If you\u2019re already supplementing with vitamin D or wondering if you should be, the surest way to know if you\u2019re on target is to request bloodwork from a health care professional to see the status of your vitamin D level.\u00a0\n<\/p>\n Ultimately, the best way to get vitamin D is through sufficient safe sun exposure<\/a> and foods that contain vitamin D. Egg yolks, mushrooms, fatty fish and fortified milk provide vitamin D plus a host of other nutrients that are necessary for good health. Recipes like our Spinach, Mushroom & Egg Casserole<\/a> and Salmon with Sun-Dried Tomato Cream Sauce<\/a> are a good place to start.<\/p>\n","protected":false},"excerpt":{"rendered":"Vitamin D is an essential nutrient that supports immune function, and heart, bone, muscle and nerve health. 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