Brenda Khan
Calcium is an essential mineral for adults, playing a vital role in maintaining healthy teeth and bones. The average adult body comprises about 2% calcium, most of which is found in the skeleton and teeth. A calcium-rich diet is crucial as it helps prevent osteoporosis, a disease that makes bones fragile and prone to fractures. While dairy products like milk, yoghurt, and cheese are excellent sources of calcium, plant-based alternatives like soy milk, almonds, and collard greens also provide significant amounts. Adults should aim for 700-1000 mg of calcium daily, and excessive calcium intake through supplements may lead to health issues. Therefore, a balanced diet with varied food sources is the best way to ensure adequate calcium intake.
| Characteristics | Values |
|---|---|
| Why is calcium needed? | Calcium is vital for healthy teeth and bones. It also plays a crucial role in the health and functioning of nerves and muscle tissue. |
| How much calcium is needed? | The recommended dietary intake (RDI) is between 1,000 and 1,300 mg/day for adults, depending on age. Adults aged 19 to 64 and over need 700 mg of calcium per day. |
| What foods contain calcium? | Dairy foods like milk, yoghurt, and cheese are good sources of calcium. Calcium-fortified products, such as plant-based milk (soy milk, rice milk) and breakfast cereals, also contain calcium. Almonds, sardines, canned salmon, collard greens, and kale are other food sources of calcium. |
| What happens if calcium intake is insufficient? | Insufficient calcium intake can lead to osteoporosis, a disease that causes bones to become fragile and brittle, increasing the risk of fractures and breakages. |
| What happens if calcium intake is excessive? | Excessive calcium intake through supplements may cause health problems, such as an increased risk of heart disease, particularly in older women. High doses of calcium (more than 1,500 mg/day) can lead to stomach pain and diarrhoea. |
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What You'll Learn
Calcium is important for bone and teeth health
Calcium is also important for nerve and muscle function. It helps with muscle growth and recovery and plays a crucial role in maintaining the health of the nervous system.
Good sources of calcium include dairy foods such as milk, yoghurt, and cheese. Yoghurt, in particular, is an excellent source of calcium and provides a wide array of other nutrients, including beneficial bacteria that promote immune function and enhance nutrient absorption. Other sources of calcium include calcium-fortified products, such as plant-based milk (soy milk, rice milk), breakfast cereals, and juices.
For those who are dairy-free or vegan, there are still plenty of calcium-rich options. Sardines, canned salmon (with bones), collard greens, kale, okra, almonds, and beans are all good sources of calcium.
The recommended daily calcium intake for most adults is around 700-1000 mg. It is important to ensure you are getting enough calcium through your diet, as taking high doses of calcium supplements (more than 1500 mg per day) could lead to health problems and stomach issues.
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It helps to prevent osteoporosis
Calcium is an important mineral for adults, with a recommended daily intake of 1,000 mg for most adults, and 700mg per day for adults aged 19 to 64 and over, according to the NHS. It is well known that calcium is vital for healthy teeth and bones, and a calcium deficiency can lead to osteoporosis.
Osteoporosis is a disease that causes bones to become fragile and brittle, increasing the risk of fractures and breakages. It is a condition that affects both men and women. When the body does not have enough calcium, it will take what it needs from the bones. This is why a calcium-rich diet is so important—it helps to keep the bones strong and healthy and prevents the onset of osteoporosis.
Good sources of calcium include dairy foods such as milk, yoghurt, and cheese. Yoghurt, in particular, is an excellent source of calcium and also contains probiotics, which promote immune function and enhance nutrient absorption. Other sources include calcium-fortified products such as plant-based milk alternatives (soy milk, rice milk) and breakfast cereals. For those on a dairy-free diet, fortified juices, sardines, collard greens, and almonds are good sources of calcium.
While supplements are an option for those who cannot get enough calcium in their diet, it is recommended that you speak to a doctor before taking them. High levels of calcium intake through supplementation may be unsafe and cause other health problems, including an increased risk of heart disease, particularly in older women.
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Calcium can be found in dairy products
Calcium is a nutrient that plays several roles in the body, including maintaining bone health throughout life. Dairy products, such as milk, yoghurt, and cheese, are well-known sources of calcium. In fact, milk is the number one food source of calcium in the American diet for both adults and children. An 8-ounce serving of milk provides 300 mg of calcium, as well as high-quality protein and other essential vitamins and minerals.
Dairy foods can provide calcium and vitamin D, which are important for bone health. While calcium absorption from milk is higher than from some non-dairy foods, the source of calcium is important. For example, only 5% of the calcium in spinach is absorbed and usable by the body, while 28% of the calcium in milk is absorbed.
Consuming dairy products and calcium-rich foods has been linked to better bone health and increased consumption of adequate nutrients. Healthy eating styles that include low-fat and fat-free dairy foods are associated with a reduced risk of certain chronic diseases, including cardiovascular disease and Type 2 diabetes.
However, it is important to note that some studies have questioned the efficacy of dairy products in promoting bone health. While calcium is important for adults, taking high doses of calcium supplements (more than 1,500 mg per day) may lead to stomach pain and diarrhoea. Overall, a varied and balanced diet that includes dairy products can help adults meet their recommended daily intake of calcium.
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It is also present in some plant-based foods
Calcium is essential for maintaining healthy bones and teeth, and it also plays a crucial role in nerve and muscle function. While dairy products are often associated with calcium, it is also present in some plant-based foods.
For those who follow a dairy-free diet, plant-based sources of calcium are a great alternative. Some plant-based milk alternatives, such as soy milk and rice milk, are fortified with calcium. This means that calcium has been added to the product, providing a good source of this mineral for those who do not consume dairy. Fortified breakfast cereals are another option to increase calcium intake from plant-based sources.
In addition to fortified products, there are also naturally occurring plant-based sources of calcium. Almonds, for example, are a nut that contains high levels of calcium. Just one ounce (28 grams) or about 23 almonds provide a good amount of calcium, along with other essential nutrients like magnesium, manganese, and vitamin E. Green leafy vegetables, such as kale and okra, are also good sources of calcium. However, it's important to note that while spinach contains high levels of calcium, our bodies cannot digest it all.
Sardines and canned salmon, which are consumed with their bones, are also excellent sources of calcium for those who do not eat dairy. Fortified juices and collard greens are further options for those seeking plant-based sources of calcium.
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Too much calcium from supplements may be harmful
Calcium is an essential mineral for human health. It is a key component of bones and plays a critical role in maintaining bone health and density. Additionally, calcium is crucial for the healthy functioning of nerves and muscles, including the heart. While calcium is well-known for its benefits in preventing and treating osteoporosis, it is important to understand that excessive calcium intake, particularly through supplements, may lead to adverse effects.
The human body requires an adequate amount of calcium to function properly, and adults aged 19 to 64 and over are advised to consume 700 mg of calcium daily. This recommended amount can typically be achieved through a varied and balanced diet. However, it is important to note that taking high doses of calcium through supplements can be harmful. Excessive calcium intake has been linked to an increased risk of cardiovascular diseases, including heart attack and stroke. High levels of calcium in the bloodstream, known as hypercalcemia, can cause a range of issues, from mild symptoms such as dehydration and headaches to more severe complications like life-threatening heart problems.
It is worth mentioning that calcium supplementation has become a widespread practice, especially among older adults, to improve bone density and skeletal health. While supplements can be beneficial for individuals at high risk of calcium deficiency or those treating osteoporosis, it is crucial to be cautious. Taking more than 1,500 mg of calcium per day may lead to stomach pain and diarrhoea. Therefore, it is recommended to be mindful of your total calcium intake, including that from multivitamins, supplements, antacids, and calcium-rich foods like yogurt.
To ensure you are getting enough calcium without exceeding safe limits, it is advisable to focus on a balanced diet that includes calcium-rich foods. Green leafy vegetables such as curly kale and okra are excellent sources of calcium, although it is important to note that the body cannot absorb all the calcium from spinach due to its oxalate content. In addition to dietary sources, getting enough vitamin D is crucial as it aids in calcium absorption and supports bone health. While supplements can be beneficial in certain cases, consulting a doctor about the appropriate dosage and considering alternative treatments is essential to avoid potential side effects.
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Frequently asked questions
Calcium is an important mineral that plays a key role in many aspects of health. It is vital for healthy teeth and bones.
Good sources of calcium include dairy foods like milk, yoghurt and cheese, and calcium-fortified products, such as some plant-based milks (for example, soy milk and rice milk) and breakfast cereals.
The recommended dietary intake (RDI) is between 1,000 and 1,300 mg/day for adults, depending on age. Adults aged 19 to 64 and over need 700mg of calcium a day.
