21 Calcium Deficiency Symptoms That Will Surprise You

It’s not just osteoporosis you have to worry about if you don’t get enough calcium. Check out these calcium deficiency symptoms along with treatment tips.

calcium deficiency symptoms

Experiencing the sort of calcium deficiency symptoms listed in our lead story? Remember that you can access good sources of calcium via broccoli, dairy, and avocado.

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Calcium, the most abundant mineral in the human body, is best known for its important role in bone health and protection from osteoporosis. However, in addition to its key role in imparting strength to bones and teeth, calcium plays a critical role as a messenger in cell-signaling pathways throughout the body and is necessary for normal cell function, transmission of nerve signals, secretion of hormones, blood coagulation, muscle contraction, and muscle relaxation. Calcium deficiency symptoms may therefore involve any of these functions and manifest in a myriad of ways.

Causes and Signs of Calcium Deficiency

Unfortunately, most Americans don’t meet the current recommendations for adequate calcium intake through diet alone or through diet plus calcium supplements and therefore suffer symptoms of low calcium.[1] Furthermore, numerous factors have been found to impair calcium absorption and/or to lower calcium levels in the blood.[2] These factors include:

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Calcium Deficiency Symptoms

Calcium deficiency symptoms can vary widely—ranging from nonexistent or mild to severe and life-threatening. Chronic untreated calcium deficiency can cause many severe consequences, including rickets, osteopenia, and osteoporosis. However, even though calcium deficiency may not be associated with any symptoms, especially early on, metabolic alterations or potential dysfunctions have already occurred.[4]

Low blood calcium levels and the lack of calcium may lead to the following low calcium symptoms:

  1. Fainting
  2. Heart failure
  3. Chest pains
  4. Numbness and tingling sensations around the mouth or in the fingers and toes
  5. Muscle cramps, particularly in the back and legs; may progress to muscle spasm ( tetany)
  6. Wheezing
  7. Difficulty swallowing
  8. Voice changes due to spasm of the larynx
  9. Irritability, impaired intellectual capacity, depression, anxiety, and personality changes
  10. Fatigue
  11. Seizures
  12. Coarse hair
  13. Brittle nails
  14. Psoriasis
  15. Dry skin
  16. Chronic itching
  17. Tooth decay
  18. Numbness or tingling in the extremities
  19. Muscle weakness
  20. Cataracts
  21. Osteoporosis symptoms (backache; a gradual loss of height and an accompanying stooped posture; fractures of the spine, wrist, or hip)

If your doctor suspects that you have a calcium deficiency, he or she may recommend blood testing. Check our our article, “A Calcium Deficiency Test Can be a Heads Up for Risk Factors” for  details.

 Calcium Deficiency Treatment and Prevention

Just how much calcium from diet and supplements is needed, and in what form, to prevent calcium deficiency symptoms? How much is required to achieve optimal health?

These questions are currently the subject of much controversy and debate among researchers, doctors, and nutritionally savvy individuals alike. The Food and Nutrition Board of the Institute of Medicine concluded that there are insufficient data from which to determine the RDA for calcium. Instead, they established Adequate Intakes (AIs) for calcium, which are the amounts thought to be sufficient to maintain bone health in healthy people. The AI for adults up to age 50 is 1,000 mg of calcium per day from food and supplements combined. For adults 51 and older, it’s 1,200 mg. As mentioned above, most American adults fail to meet these requirements, even when they take supplements, which can result in bone deficiency symptoms.[1]

How to Increase Calcium Intake

If you experience low calcium in blood symptoms, try to get the majority of your calcium from food sources (see our post “Calcium-Rich Food: Tasty Choices Are Easy to Find“). While dairy is a concentrated source of calcium, other components in dairy make it a poor choice for maintaining bone health.

Instead, opt for foods high in calcium; examples: salmon and sardines canned with bones, kale, collards, broccoli, mustard greens, turnip greens, bok choy, and sesame seeds. For calcium supplements, choose calcium citrate or calcium citrate malate, and take it in at least two divided doses with meals for the best absorption.

Avoid Too Much Calcium from Supplements

Keep in mind that it is just as important to avoid getting too much calcium from supplements as it is to get enough. Excessive calcium from supplements may increase the risk of cardiovascular disease and kidney stones, so don’t overdo it. Aim for 1,000 to 1,200 mg from food and supplements combined.

Share Your Experience

Are your calcium levels low? How do you ensure adequate calcium intake? Share your ideas with your fellow readers in the Comments section below.


[1] Am J Clin Nutr. 2007 May;85(5):1361-6.

[2] Linus Pauling Institute. Micronutrient Info Center. Calcium.

[3] Br J Surg. 2014 Nov;101(12):1566-75.

[4] BMC Med. 2013; 11: 86.


Originally published in 2014, this post is regularly updated.

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Comments
  • My all joints are cracking and popping if i move sounds comming..and am having kidney stone and am having medicine for 1 and half months..i thinks its the cause of the kidney stone medicines am feeling un sufficiant calcium level in my body…plz help and give suggestion

  • Get treatment for kidney stone asap! Try mild forms of exercise, like gentle bouncing on trampoline. Seek help. Low ca is not to fool around with. Dr. Can order a blood test so you know your level, and decide on treatment. Search about kidney stones and avoid foods that create that problem. Eat well and good luck.

  • These are all symptoms of hypercalcemia, excess calcium was pointed out in major degenerative diseases such as Alzheimer’s, Parkinson’s, Cancer, Epilepsy and so on.

  • Ashley W.

    Is it OK to take calcium supplement and eat a little source of calcium? I am a picky eater and do not drink/eat dairy products.

  • Getting enough Vitamin K is super important and the lack of which is the reason why arteries get calcified. Vitamin K, in addition to Vitamin D and magnesium, all work together.

  • I heard sounds on my gots while I’m walking, and I’m become tired within short time. Foot become hot to the toes, what is the problem may I have, please help me.

  • Marcellina N.

    Shortness of breath when walking, loss of appetite and weight loss, lack of sleep , loss of saliva n tingling on my big toe, went for blood tests every thing came out right except for low level of calcium, doc gave me calcium supplements and appointment in a months time, hope am on the right treatment, thank you

  • Virginia B.

    I have been concentrating on food sources and keep track daily, yogurt with 2Tbls chia seeds, unsweetened almond milk with Golden Milk (a turmeric powder drink), bone broth, kefir not to mention the green veggies. I count till I reach near 1200 mg. I do supplement with Calm magnesium powder, make sure I get plenty of C in my diet and revved up the potassium with daily avocado, squash, spinach etc. At 63, you find every calorie needs to count and it is a commitment but well worth it. My body seems pleased!

  • Eugene

    You must be cautious about self diagnosis. If your signs and symptoms seem to line up with any deficiency signals, get a test by your medical professional. There are many signs and symtoms that were listed that could apply to many other possible conditions. If in doubt, see your doctor and get tested. It is possible to further hinder your condition if you treat it improperly.

  • whisperingsage

    I have avoided calcium supplements for years due to natural docs advising against it. I thought I had adequate dietary intake. I have taken optimal doses of magnesium, vitamin k2, Vitamin C, boron, Vitamin A, Vitamin D, copper and zinc, all if which help but still suffered from leg cramp s when overworked. The last two years I have been on Prilosec for a worsening ulcer, and the arthritis got unbearable. ( Prilosec destroys mitichondria). I also have had chronic insomnia. Looked that up on Wallach wisdon encyclopedia. Saw from his chart most supplements need to be taken in far higher doses than we thought. Took 6 tablets instead of bottle recommended 2. Within 6 hours my arthritis eased up, from 10/10 pain level to 2/10. Since I am on all the calcium support nutrient s I am much less afraid of calcium overdose. Now I sleep better too. My fast pukse has normalized, my leg cramps are gone. There is only one spot left in the middle of my back with a twinge of pain.

  • diamondlips.xyz

    right in the feels seeing a dog happy like that just makes my heart filled with happyness

  • Why wouldn’t high blood pressure be on here, if not the first problem?

  • I am vit D deficient. Also calcium. Symptoms on this list are right. I would get the odd palpitation in my throat – NOT my heart/chest – THROAT – weirdest thing ever. Lower leg muscles when stretching after waking up would lock-up (tetany) and that’s very painful. Tingling hands, fingers, feet – shooting electric pains through forearm. My hands and feet became numb. I’m not even 40!!
    Chest pains are strong – feels like a heart attack – shredding pain on in breath.
    Vitamin D is sooo important!! I eat plenty of calcium but didn’t know i was so deficient in vitamin D.
    It destroyed my life – the etiology of this deficiency when left longterm is dire and you will certainly lose your job, freedom and independence due to severe chronic illness. Take vitamin D and calcium levels seriously!! I can’t believe a deficiency almost killed me – afterall, i’m in the west where we have superior choices and quality foods right? Yeah….right….;-)
    If you’re in the northern hemisphere i highly recommend a vit D and calcium test – there is not enough sun in the UK and Ireland especially ….darker skinned people need more sun!! (im very fair and work outside all my life yet still have a deficiency in D!!)
    This is seriously under-appreciated how a common vitamin deficiency can ruin your life – and it’s possible it’s happening to someone you know and love too.

  • whisperingsage

    Not a word on vitamin k2 ( not k1) which is essential to driving calcium where it belongs and away from soft tissues ( ie arterial plaques, ) and abnormal forms like bone spurs which are a sign of calcium deficiency. Not a word about optimal dose vitamin D ( which according to endocrinologist Sarfraz Zaidi appears to average out to 10,000 iu for most people to have optimal blood levels), no word on other bone support ; copper/zinc, boron, lysine, collagen and gelatin, and several more, the list has grown it’s hard for me to remember. I thought I had plenty of dietary calcium so didn’t supplement but supplemented everything else. Arthritis in was terrible , 10/10 on the pain scale. Leg cramps very horrible. I thought I needed more magnesium. It helped some but didn’t resolve the basic pain. As a chronic insomnia I reread some if Joel Wallach’s material, calcium. I tried it. My arthritis went down to 3/10 almost immediately. ( 6 hours). I was shocked. Now additionally I am taking gelatin and collagen. That us helping a lot. Remember folks , collagen has five types, some people need all, some available supplements have no type II which is essential. I haven’t discovered why type II should be so expensive and left out

  • My hands and feet got “pins and needle” feeling about 2 years ago. I have Lymes Disease and I just thought it was the Disease progressing. Also hard to sleep, joint and muscle pain, my elbows and hands would be paralyzed when I awoke, stiff hands. feet, hips. I stopped drinking milk about 10 years ago because Dairy Farmers up here are destroying streams and groundwater like you can’t believe. Well 1 day I had 2 bowls of cereal with milk and 2 additional glasses of milk and it was like WOW, my tingling in hands and inflammation and stiffness improved overnight, my aching bones and muscles went away. Started a Organic Plant Calcium Supp with DE, K2 and magnesium. I can’t believe how much better I feel, I can actually spread my toes a little(they were swelled up and stiff)…Now, some parts of my body feel a little weird…wonder if its my body replenishing itself????

  • I have pain in my knee while climbing on stairs and tiredness in my body.It seems that body requires rest at everytime and.Is it the deficiency of calcium

  • I have taken a calcium supplement for at least 25 years, when I was I was diagnosed with osteoporosis about 10 years ago I couldn’t believe it. My body stopped absorbing calcium. Treatments first provided had no impact on calcium absorption and took about a year to diagnose the real problem. Once the real problem was realized and medication to help my body absorb calcium was given the medication to strengthen my bones improved dramatically. After the first year, my bone density increased by 17%. When someone tells me they have osteoporosis, I tell them to have the doctors check for calcium absorption.

  • I am 48 and have osteoporosis. I took a 24 hour urine test which showed hypercalcemia meaning my kidneys are not processing and absorbing the calcium and I am excreting it in my urine. No one knows why this happens! . I have so many symptoms that I now can point at low calcium. Symptoms include muscle spasms and twitches, burning in leg and arm, heart palpitations, depression, internal “shaking” or chills feeling. They put me on Hydrochlorothiazide, 12.5 mg. It is not really helped the symptoms and I am worried and I will continue to lose calcium. Make sure to get your urine checked.

  • Correction on previous post it’s hyperuricemia not hypercalcemia. My blood calcium level was fine. It was only in the urine. Sorry for the error.

  • Haresh p.

    on my face has black or bark spot have come about last 2-3months
    What is the reason of that
    And also how do its treatment like any soap. Cream whatever.

  • I was taking Tamiflu last week, along with Pedialyte and generous salt intake AND hydrocortisone at only 10mg for a few days. I started feeling faint and week. Almost worse after the flu. I just by chance drank a protein milk drink I found at stop and shop. My whole body perked up. I couldn’t figure out to save myself why???? When I did my blood work also last week during the flu and landed in the hospital- looks normal. Well, according to real science, your body will steal from your bones first to normalize blood levels before it will show there, so symptoms come before labs will
    Show. Too much sodium can suppress or lower calcium. I had heart palpitations, extreme fatigue, short of breath, my body felt tense, brain foggy, legs and muscles seemed sore. I’m startimg to turn the corner but I believe that I was probably already low. I never drink milk or dairy so this is my fault but .. wow.
    Also, to the girl above, I had the same exact thing happen with low vitamin D. Major throat pain. Like someone was chokin me. 1 week on liquid D and went away.

  • Please what can cause mild pains in bones? Though have been on calcium supplement for three days now

  • I was vitamin D deficient but now my vitamin is ok but i dnt understand why my bones popping and cracking. I cant sleep, i feel numbness in my shoulder anf fingers. Sometimes igot so much pain in my shoulder and arm kindly tell mewhat to do

  • ovoke

    I have a good product you can take just tell me problem I will tell you what to take

  • LaTrina

    I’m just returned from a 3 day stint in the hospital..on Sunday I had several seizures and although I was diagnosed with epilepsy a few years ago I was diagnosed with hypoglycemia and admitted with a calcium level of 6.1 (normal is 8.5-10.1). I take several med school for epilepsy and atenolol for high blood pressure. I guess what I’m asking is what do I need to do now in order to increase my calcium intake without interference with my other medications? Help!

  • Rajveer

    I have pain in my left breast nd left shoulder. But the doctor says there is nothing. Is this is due to lack of calcium nd vitamin

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