All you need to know about fat-soluble vitamins
https://ift.tt/2lHp43P The human body requires a variety of vitamins to keep working properly. There are two types of vitamins: water-soluble and fat-soluble vitamins. Vitamins are often obtained through regular food intake. Some people require or want additional vitamins provided through supplements. Though both types of vitamin are important to the body, this article focuses on the types, functions, and sources of fat-soluble vitamins. What are fat-soluble vitamins?
Fat-soluble vitamins provide the most benefit when consumed alongside foods that contain fat.
Fat-soluble vitamins will not dissolve in water. Instead, fat-soluble vitamins absorb best when taken with higher-fat foods. Once absorbed into the body, fat-soluble vitamins are stored in fatty tissues and liver. The body can use these stores for future use. The water-soluble vitamins are vitamins B and C. There are four types of fat-soluble vitamins: Each type of fat-soluble vitamin promotes different functions in the body. People deficient in the fat-soluble vitamins may require supplements to boost their supply. However, it is possible to take in too much of a fat-soluble vitamin, which could lead to toxicity and adverse reactions. Vitamin AVitamin A plays an important role in maintaining healthy vision. Without vitamin A, a person would suffer from severe vision issues. Types Vitamin A does not refer to one single vitamin but is a collection of compounds known as retinoids. Retinoids can be found both in the human body and in some food sources. Function Vitamin A supports several functions throughout the body. Some of the most important functions it supports include vision and the immune system. Dietary sources Vitamin A can be obtained through natural sources. Some sources include:
Animal sources provide the active components to help create retinols within the human body. Some plants also provide pro-vitamin A compounds known as carotenoid antioxidants. The most common is called beta carotene, which can be found in foods such as: Recommended intake The recommended intake of vitamin A varies by age and gender. The following are some recommended daily allowance values:
Deficiency Vitamin A deficiency is not common in developed countries. However, vegetarians are at a higher risk of a deficiency because they do not get some kinds of vitamin A through their normal diet. Similarly, people in developing countries with limited food sources or people whose diet is low in meat intake may also suffer from vitamin A deficiencies. Some signs of vitamin A deficiency include: Overdose It is possible to reach toxic levels of vitamin A. This condition is called hypervitaminosis. People who take vitamin A supplements or eat copious amounts of fish liver oils are at the highest risk. Pregnant women should not double up on their prenatal vitamins. High levels of vitamin A are harmful to a growing fetus. If a person experiences an overdose, they may experience symptoms ranging from headaches and fatigue. In severe cases, hypervitaminosis in a pregnant woman may result in a baby with birth defects. Vitamin D
Vitamin D is produced by the body when the skin is exposed to sunlight.
Vitamin D is produced naturally in the human body when the skin is exposed to the sun. Vitamin D aids in bone health and development. Types Similar to vitamin A, vitamin D is a collective term used to describe a collection of compounds. Collectively, these are often referred to as calciferol. There are two types found naturally:
Function Once vitamin D is absorbed into the bloodstream, the liver and kidneys change calciferol into calcitriol, the biologically active form of vitamin D. When used in the body, vitamin D performs two major roles:
Dietary sources Vitamin D absorption is one of the only arguments for a person exposing large, unprotected areas of skin to the sun. When exposed regularly, people can actually absorb enough rays to produce vitamin D to function properly, without need for supplements. However, many people do not spend hours in the sun. When people do, they are also often covered in sunscreen and clothing. As a result, a person is not likely to absorb as much vitamin D through sunlight alone. Instead, people can obtain vitamin D through some food sources, including:
Recommended intake Recommended daily values of vitamin D vary by age, though not by much. Some general guidelines indicate the following daily values:
Deficiency It is not very common for a person to develop vitamin D deficiency. When it happens, most cases involve older adults or people who have been admitted to the hospital for extended amounts of time. Some people are at a higher risk of developing a vitamin D deficiency. These include:
Some of the most common signs and symptoms of vitamin D deficiency include:
Overdose Toxic levels of vitamin D rarely occur. They are most likely to occur in people who take too many vitamin D supplements. An overabundance of vitamin D in the body can lead to a condition called hypercalcemia. This condition is marked by excessive levels of calcium in the blood. When hypercalcemia occurs, a person may experience: Vitamin EVitamin E is an antioxidant that can help the body destroy free radicals. Free radicals are unstable atoms that may cause the formation of cancer cells. As such, vitamin E could play an important part in preventing cancer. Types Vitamin E is broken down into eight different types, with the two main kinds being tocopherols and tocotrienols. Tocopherol contains the most abundant form of vitamin E. Function As an antioxidant, vitamin E protects fatty tissues from free radicals that can cause cancer. Some water-soluble vitamins, such as C and B, help aid vitamin E's functions. In higher doses, vitamin E can also function as a blood thinner. Dietary sources Vitamin E is most abundant in seeds, vegetable oils, and nuts. Some of the best sources of vitamin E include:
Recommended intake Similar to vitamin D, recommended daily values for vitamin E vary by age. Here are some of the breakdowns of recommended daily values:
Deficiency Vitamin E deficiency is extremely rare in otherwise healthy individuals. Those with specific illnesses that block the liver from absorbing vitamin E are most at risk. Symptoms of deficiency include:
There are also several long-term health issues that can result from vitamin E deficiency, including anemia and heart disease. Overdose It is nearly impossible for a person to overdose on vitamin E through natural sources. Most people who experience an overdose do so because of taking vitamin E supplements. However, people taking blood thinners may be more prone to overdose. In high doses, vitamin E may actually increase the risk of a person developing cancer. Vitamin K
Kale, spinach, and parsley all contain vitamin K.
Vitamin K helps the body form blood clots. This necessary function prevents a person from bleeding out from small scratches. Types Vitamin K has a variety of types. The two most common groups are:
There are additional man-made types of vitamin K. Function The main role that vitamin K plays in the body is blood clotting. However, vitamin K can also help with:
Dietary sources Vitamin K-1 and K-2 are found in a variety of sources. Some of these sources include:
Recommended intake Unlike the other vitamins mentioned, vitamin K recommended values are thought of as adequate intake. When a supplement is measured in adequate intake, it means there is less evidence to support the specified amount. Some recommended adequate intakes include:
Deficiency Vitamin K is not stored in as great an amount in the body as vitamin A or D. This can lead a person to experience a vitamin K deficiency very quickly. If a person has a vitamin K deficiency, they have a greater risk of excess bleeding and reduced bone density that can lead to fractures. Overdose Naturally occurring vitamin K has no known issues with overdose. Synthetic vitamin K-3, however, may cause overdose when taken in excess. In general, vitamin K is considered safe to consume. TakeawayFat-soluble vitamins play an essential role in a person's overall health. It is important to manage the amount of each vitamin to avoid deficiencies and overdosing. Both can have adverse effects that may require medical attention. Before starting a vitamin supplement, a person should speak to a doctor, and seek medical attention if a deficiency or overdose is expected. Weight Loss via Obesity / Weight Loss / Fitness News From Medical News Today https://ift.tt/O45xlc September 27, 2019 at 01:55PM
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The Flat Belly FixThis is the only 21-day rapid weight loss system that allows you to easily lose an average of 1 lb a day for 21 days without feeling hungry or deprived. The unique and brand new techniques used in this System are proven SAFE. And they do not cause the rebound weight gain common to all the other rapid weight loss systems that are not backed by the latest science. The Flat Belly Fix System takes advantage of a recent scientific discovery that proves the effective weight loss power of an ancient spice. Combined with other cutting-edge ingredients in the patent-pending Flat Belly Fix Tea™ — that you can make right in your own kitchen in minutes — this System is the quickest, easiest and most enjoyable way to quickly get the body you desire and deserve. Click HereArchives
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