Calcium is a crucial mineral for maintaining bone health and supporting various bodily functions, including muscle contraction and nerve signaling. Not only is it crucial for general health, it is especially crucial to consume enough calcium for BJJ athletes.
So many submissions and positions that put extreme pressure on the joints and bones themselves. We as athletes need to prioritize things like bone density to make sure we stay healthy and mobile.
This article will cover the benefits, sources, and recommended intake of calcium, along with the risks of deficiency and toxicity so you can be at peak performance.
What is Calcium?
Calcium is the most abundant mineral in the human body, primarily stored in bones and teeth, which contain around 99% of the body's calcium.
It plays several vital roles beyond bone health, helping with blood clotting, muscle function, and proper nerve transmission.
Why is Calcium Important?
Calcium is essential for several functions in the body:
- Bone Health: Calcium is critical for bone development and maintenance. As we age, adequate calcium intake helps prevent bone density loss and reduces the risk of fractures and osteoporosis.
- Muscle Function: Calcium plays a key role in muscle contraction, including the heartbeat. Low calcium levels can lead to muscle spasms and cramps.
- Nerve Transmission: Calcium aids in transmitting signals between the brain and other parts of the body. It supports the release of neurotransmitters, which are essential for normal brain function.
- Blood Clotting: Calcium is necessary for the blood clotting process, which is essential for healing wounds and preventing excessive bleeding.
Recommended Intake
The recommended daily intake of calcium varies by age, gender, and life stage. Here are the general guidelines:
- Infants (0-6 months): 200 mg
- Infants (7-12 months): 260 mg
- Children (1-3 years): 700 mg
- Children (4-8 years): 1,000 mg
- Adolescents (9-18 years): 1,300 mg
- Adults (19-50 years): 1,000 mg
- Adults over 50 years: 1,200 mg
- Pregnant and breastfeeding women: 1,000 mg (1,300 mg if under 18 years old)
Sources of Calcium for BJJ Athletes
Calcium can be obtained from various food sources and supplements:
Food Sources:
- Dairy Products: Milk, cheese, and yogurt are rich sources of calcium.
- Leafy Green Vegetables: Spinach, kale, and collard greens provide calcium, though some contain oxalates that may reduce calcium absorption.
- Fish with Bones: Canned salmon and sardines, eaten with the bones, are excellent sources of calcium.
- Nuts and Seeds: Almonds and chia seeds offer smaller but valuable amounts of calcium.
Supplements:
Calcium supplements are available and may be beneficial for those with dietary restrictions. Calcium carbonate and calcium citrate are the most common forms. However, calcium citrate is generally better absorbed, particularly in those with lower stomach acid.
Deficiency and Toxicity
Calcium Deficiency:
Symptoms of calcium deficiency, known as hypocalcemia, can include muscle cramps, brittle nails, and in severe cases, osteopenia or osteoporosis. Calcium deficiency is most common in postmenopausal women, people with lactose intolerance, and those who follow a vegan diet without adequate plant-based sources of calcium.
Osteoporosis Risk: Long-term calcium deficiency can lead to osteoporosis, a condition where bones become weak and brittle. This increases the risk of fractures and is a significant concern for aging adults.
Calcium Toxicity:
Excessive intake of calcium, usually from supplements, can lead to toxicity. Symptoms include constipation, kidney stones, and, in severe cases, impaired kidney function. The upper limit for calcium intake is 2,500 mg per day for adults (2,000 mg for those over 50). Exceeding this limit can increase the risk of hypercalcemia, which can interfere with heart and kidney function.
Conclusion
Calcium is not only an essential mineral for general health, it is especially important for bjj. Achieving the recommended daily intake through a balanced diet and, if necessary, supplements, can help maintain overall health and reduce the risk of bone-related diseases as we age.
If you suspect a calcium deficiency or have specific health concerns, consult with a healthcare provider to determine the best course of action.
If you would like to learn more about nutrition and wellness, click here to view our blog where we cover many similar subjects.
Sources:
- National Institutes of Health (NIH) Office of Dietary Supplements
- Mayo Clinic
- Harvard T.H. Chan School of Public Health
- American Academy of Orthopaedic Surgeons