Calcium: benefits and harms for the body
Calcium is one of the most important minerals for the human body, playing a key rolerole in many biological processes. It is known primarily as a building material for bones and teeth, but itsfunctions are much broader. However, like any substance,Calcium can be not only beneficial but alsoharm if consumed incorrectly.
Benefits of calcium for the body
Calcium is essential for maintaining health and the normal functioning of many body systems:
- Strong bones and teeth: About 99% of the body's calcium is found in bones and teeth, providing their strength and structure. Adequate calcium intake from childhood and throughout life helps prevent osteoporosis.
- Muscle Function: Calcium plays a critical role in the contraction and relaxation of muscles, including the heart muscle.
- Nervous system: It is involved in the transmission of nerve impulses, providing communication between the brain and the rest of the body.
- Blood clotting: Calcium is one of the factors necessary for the normal blood clotting process, preventing excessive blood loss.
- Hormonal balance: The mineral influences the secretion of hormones and enzymes that regulate various functions of the body.
- Heart Health : Maintains normal heart rhythm and blood pressure.
Sources of calcium
The main sources of calcium are foods:
- Dairy products: Milk ,yogurt , kefir,Cheese is the most famous and richest source.
- Green leafy vegetables: Spinach,kale , broccoli.
- Fish: Sardines and salmon (with bones) also contain significant amounts of calcium.
- Nuts and seeds: Almonds, sesame, chia.
- Legumes: Beans, lentils.
- Fortified foods: Some breads, cereals, orange juice, and plant-based milks (soy, almond) are fortified with calcium.
To absorb calcium, the body needs vitamin D, which can be obtained from sunlight, fatty fish, or supplements.
The harm and risks of excess calcium
Although calcium is vital, consuming too much, especially in supplement form, can have negative consequences:
- Hypercalcemia: High levels of calcium in the blood can cause nausea, vomiting, constipation, weakness,fatigue and confusion.
- Kidney Stones: Excess Calcium Increasesrisk of kidney stones, especially in people predisposed to this.
- Heart problems : Some studies link excessive consumption of calcium supplements to an increased risk of cardiovascular disease, including arterial calcification.
- Impaired absorption of other minerals: High doses of calcium can interfere with the absorption of iron, zinc and magnesium.
Recommended daily intake
The recommended daily intake of calcium varies by age and gender. For most adults, it's around 1,000 mg per day, while for adolescents and older adults, it's up to 1,200-1,300 mg. It's important to get calcium primarily from food, and use supplements only under the advice of a doctor.
Conclusion
Calcium is an essential mineral for maintaining healthy bones, muscles, nervous systems, and cardiovascular systems. A balanced diet rich in calcium and vitamin D is the best way to ensureThe body needs this essential element. However, it's important to remember that both calcium deficiency and excess can be harmful, so it's important to maintain moderation and consult a specialist if necessary.
Read together with it:
- Milk after 45 - harm or benefit?As we age, ourthe body undergoes many changes, and what was useful in youth can have different effects onhealth in adulthood.Milk , traditionally considered a source of calcium and other nutrients, is a source of much debate among people over 45. Let's find out whether it isMilk is a friend or an enemy for those who have crossed this age limit. Benefits of milk after 45 Despite all the controversy...
- What does Magnesium do to our body?Magnesium is one of the most important minerals that plays a key roleIron plays a role in maintaining human health. It participates in over 300 biochemical reactions in the body, influencing everything from energy production to the functioning of the nervous system and muscles. Let's take a closer look at what exactly this amazing element does.1. Energy ExchangeMagnesium is an essential cofactor i...