Dante Carrillo
Minerals are essential nutrients that our bodies require in small amounts to function properly. They are inorganic substances that our bodies cannot produce, and hence, we must obtain them from our diet. A healthy and balanced diet that includes all five food groups should provide all the minerals our body needs. However, individual health conditions may require specific dietary targets for minerals. For example, people with chronic kidney disease need to limit their potassium intake. Some essential minerals include calcium, iron, magnesium, sodium, and potassium. Calcium is vital for building strong bones and teeth, while iron is necessary for forming hemoglobin in red blood cells, which carries oxygen throughout the body.
| Characteristics | Values |
|---|---|
| Why minerals are needed | Build strong bones and teeth, turn food into energy, perform essential functions, and support the nervous system |
| How much is needed | Small amounts; typically measured in milligrams (mg) or micrograms (mcg) |
| Where do minerals come from | Rocks, soil, water, plants, and animals |
| How to get minerals | Eat a healthy, balanced, and varied diet with all 5 food groups, including vegetables, beans, fruits, whole grains, lean protein, and dairy products |
| Mineral examples | Calcium, iron, magnesium, potassium, zinc, sodium, phosphorus, iodine, copper, manganese, chromium, selenium, fluoride, molybdenum |
| Mineral deficiency | Common in older adults, especially women and people with few dairy products in their diet; can lead to brittle bones and fractures |
| Mineral toxicity | Minerals can build up in the body and cause harmful effects; do not take individual mineral supplements unless prescribed by a doctor |
| Individual considerations | Individual health will determine essential mineral needs; work with a doctor to develop targets for dietary minerals |
| Trace elements | Iodine and fluorine are needed in much smaller amounts than vitamins and minerals |
| Fat intake | Fat is essential for a healthy diet as it gives energy and helps absorb vitamins and minerals, but limit intake due to high calories and potential health issues |
| Sugar intake | Ideally, no more than 5% of energy consumed should come from free sugars; reduce intake of foods with added sugars |
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What You'll Learn
- Calcium requirements vary across different life stages
- Iron deficiency is common in women with heavy periods
- Magnesium deficiency may cause muscle cramps, headaches, and insomnia
- Potassium is important for nerve, muscle, and heart health
- Zinc is essential for immune function and the maintenance of vision, taste, and smell
Calcium requirements vary across different life stages
Calcium is an essential mineral for the body, contributing to strong bones and teeth, regulating heartbeat, and ensuring normal blood clotting. The body requires calcium at varying levels across different life stages.
Babies and Young Children
Formula-fed babies are estimated to need more calcium than breastfed babies, as the calcium in infant formula may not be as efficiently absorbed as that in breast milk. However, during pregnancy, women absorb calcium from food more efficiently, eliminating the need for additional dietary calcium. Similarly, breastfeeding women generally do not require increased calcium intake unless they are adolescents. Young children have high calcium requirements due to the constant growth of their skeletal tissue.
Pre-teens and Teenagers
Puberty triggers a growth spurt, increasing calcium requirements. Adequate calcium intake during these years is crucial for building peak bone mass and reducing the risk of osteoporosis later in life.
Adults
The U.S. Food and Drug Administration (FDA) recommends a Daily Value (DV) of 1,300 mg of calcium for adults. Men need 1,000 mg per day until age 70 and 1,200 mg thereafter. Women over 50 require 1,200 mg of calcium daily.
Elderly People
As people age, their skeleton loses calcium. Therefore, elderly individuals, especially women, are at a higher risk of calcium deficiency, which can lead to brittle bones and fractures.
Overall, calcium requirements fluctuate throughout life, with certain groups, including young children, teenagers, and women over 50, having above-average requirements. While supplements are an option, it is generally recommended to obtain calcium from food sources, including dairy products, calcium-fortified foods, and leafy green vegetables.
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Iron deficiency is common in women with heavy periods
Vitamins and minerals are essential nutrients that the body requires in small amounts to function properly. A healthy balanced diet should provide all the minerals your body needs. Essential minerals include calcium, iron, and potassium. Calcium, for instance, helps build strong bones and teeth and regulates your heartbeat. Iron helps the body make red blood cells to carry oxygen, and potassium helps the body control fluid balance and heart health.
If you are concerned about heavy periods or iron-deficiency anemia, you should contact your healthcare provider. Treatment for iron-deficiency anemia includes intravenous iron infusions for severe cases and oral iron supplements for moderate to mild cases. In some cases, your doctor may recommend a mineral supplement. However, it is important to note that too much supplemental iron can overwhelm your body's ability to regulate iron.
To ensure you are getting enough minerals, eat a healthy diet that includes a variety of vegetables, beans, fruits, whole grains, lean protein, dairy products, and unsaturated fats like olive oil.
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Magnesium deficiency may cause muscle cramps, headaches, and insomnia
The human body requires a variety of vitamins and minerals to function properly. These include calcium, iron, potassium, and manganese, among others. Vitamins and minerals are essential nutrients that the body needs in small amounts. A healthy and balanced diet should provide all the minerals your body needs.
Magnesium is one such mineral that plays an important role in nerve signaling and maintaining potassium levels in muscle cells. A deficiency in magnesium can lead to multiple health issues, including muscle cramps, headaches, and insomnia.
Magnesium deficiency can cause muscle twitches and severe or persistent muscle pain. It can also lead to mental health issues such as apathy, depression, and anxiety. Additionally, low magnesium levels can increase the risk of developing osteoporosis by lowering blood calcium levels.
The recommended daily intake of magnesium is 420 mg for men aged 31 and older, and 320 mg for women in the same age group. Magnesium-rich foods include seeds, nuts, and spinach. However, in some cases, a doctor may recommend a magnesium supplement or intravenous magnesium if levels are very low.
It is important to note that individual health needs determine mineral requirements. Consult with a healthcare professional to develop targets for dietary minerals that are specific to your needs.
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Potassium is important for nerve, muscle, and heart health
Vitamins and minerals are essential nutrients that the body requires in small amounts to function properly. A healthy balanced diet should provide all the minerals your body needs. However, individual health conditions determine the essential mineral needs of a person. For instance, people with chronic kidney disease need to limit foods that are high in potassium.
Secondly, potassium is essential for muscle contractions. Both low and high blood potassium levels can affect nerve impulses, which in turn weaken muscle contractions.
Lastly, potassium is important for heart health. Potassium helps maintain a regular heartbeat. Low potassium levels in the blood can affect the heartbeat, and the heart cannot effectively pump blood to the brain, other organs, and muscles. A diet rich in potassium can also help control high blood pressure, which is a risk factor for heart disease and stroke.
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Zinc is essential for immune function and the maintenance of vision, taste, and smell
Minerals are essential nutrients that the body needs in small amounts to function properly. A healthy and balanced diet should provide all the minerals your body needs. However, certain individuals may need to pay closer attention to their mineral intake. For example, older women are at risk of calcium and iron deficiencies.
Zinc is a mineral that is essential for immune function and the maintenance of vision, taste, and smell. It is involved in hundreds of bodily functions and is present in nearly every cell in the body. Zinc is crucial for the development and function of the immune system, including innate and adaptive immunity. It supports the growth and maturation of T cells, a type of white blood cell that fights infections. Studies have shown that zinc deficiency impairs T cell development and function, leading to reduced numbers of this vital immune cell.
Zinc is also important for maintaining the senses of taste, smell, and vision. Rod function, essential for vision, is impaired in zinc deficiency, and a lack of zinc has been linked to decreased taste and smell acuity. Additionally, zinc has anti-inflammatory and antioxidant properties, making it beneficial for treating skin conditions and preventing UV-induced skin damage.
Zinc deficiency is quite common, especially in developing countries, and it is the fifth leading cause of healthy life year loss in these regions. In industrialised countries, the elderly population is particularly at risk of zinc deficiency, with nearly 30% affected. Vegetarians and those with gastrointestinal disorders may also be at risk of zinc deficiency due to their diets or poor absorption.
While zinc is essential, it is important to note that excessive intake can lead to serious reactions. Most individuals should be able to obtain sufficient zinc through a healthy diet, but those at risk of deficiency may need to consider supplements or dietary changes.
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Frequently asked questions
Minerals are important inorganic nutrients that our bodies need to perform a range of functions, from building strong bones and teeth to ensuring the normal function of the nervous system. They are called micronutrients because we only need them in small amounts.
Essential minerals include calcium, iron, potassium, magnesium, phosphorus, sodium, and chloride.
The amount of calcium you need depends on your age and gender. Men need 1,000 mg per day until age 70, and 1,200 mg after that. Women aged 51 and older need 1,200 mg of calcium per day.
Good sources of calcium include dairy foods like milk, yoghurt, and cheese, as well as some plant-based foods with added calcium, such as soy milk, tofu, and certain breakfast cereals. Other sources include almonds, bok choy, kale, parsley, broccoli, and watercress.
For most people, a healthy and varied diet that includes all five food groups will provide all the minerals needed. However, if you have certain health conditions or deficiencies, your doctor may recommend taking mineral supplements. It's important to be cautious when taking supplements, as ingesting too much of a mineral can be harmful.
