Muscle aches, cramps, and spasms are the earliest signs of a calcium deficiency,
tend to feel pain in the thighs and arms, particularly the underarms, when walking and otherwise moving
More severe - numbness and tingling in the hands, arms, feet, legs, and around the mouth.
These symptoms can come and go, but they do not disappear with activity, and a person may have to wait them out.
2. Extreme fatigue
Low levels of calcium can cause insomnia or sleepiness.
People tend to experience:
extreme fatigue
lethargy
an overall feeling of sluggishness
lack of energy
Fatigue associated with calcium deficiency can also cause lightheadedness, dizziness, and brain fog, which involves lack of focus, forgetfulness, and confusion
Alopecia
3. Nail and skin symptoms
Chronic calcium deficiency can affect the skin and nails.
The skin may become dry and itchy, and researchers have linked hypocalcemia to eczema and psoriasis
A calcium deficiency may lead to dry, broken, and brittle nails. It can also contribute to alopecia (a condition that causes hair to fall out in round patches).
4. Osteopenia and osteoporosis
Osteopenia reduces the mineral density of bones, and it can lead to osteoporosis, that makes bones thinner and more susceptible to fractures.
It can cause pain, issues with posture, and eventual disability.
The bones store calcium well, but they require high levels to stay strong. When overall levels of calcium are low (in the blood), the body can divert it from the bones, making them brittle and prone to injury.
5. Painful premenstrual syndrome (PMS)
Low calcium levels have been linked to severe PMS.
A 2017 study reported improved mood and reduced rates of fluid retention after taking 500mg/daily of calcium for 2 months.
In 2019, a study concluded that low levels of vitamin D and calcium during the second half of the menstrual cycle might contribute to symptoms of PMS
The calcium effect on PMS is correlated to the production of serotonin (key hormone that stabilizes mood) and tryptophan (an essential amino acid) metabolism
6. Dental Problems
When the body lacks calcium, it pulls it from sources such as the teeth. This can lead to dental problems, including weak roots, irritated gums, brittle teeth, and tooth decay.
Also, calcium deficiency in infants can delay tooth formation.
7. Depression
Calcium deficiency has been linked to mood disorders, including depression, though evidence is lacking.
Anyone who suspects that a calcium deficiency is contributing to depressive symptoms should ask a doctor to check their levels. Calcium supplements could help to manage these symptoms.