It Could Be Calcium and Vitamin D Deficiency

Calcium and vitamin D deficiencies are increasingly common, especially in the UK where sunlight exposure is limited for much of the year. These two nutrients are closely linked—vitamin D helps your body absorb calcium, which is essential for strong bones, muscles, and overall health.

When levels drop, a wide range of symptoms can appear, from mild fatigue to serious complications affecting the bones, muscles, and heart.

Symptoms of Calcium Deficiency

Calcium plays a vital role in muscle function, nerve signaling, and bone strength. Low levels (hypocalcaemia) can lead to:

Common Symptoms

• Muscle cramps (especially in the calves)

• Muscle spasms or twitching

• Tingling or numbness in fingers, lips, or face

• Fatigue and weakness

• Brittle nails

• Dry skin

• Hair loss

Clinical Signs (Detected by a Doctor)

• Chvostek’s sign (facial muscle twitching)

• Trousseau’s sign (hand spasm under pressure)

• Increased neuromuscular excitability

• In severe cases: seizures or heart rhythm abnormalities

Symptoms of Vitamin D Deficiency

Vitamin D is essential for calcium absorption and bone health. Deficiency is very common, particularly in people with low sun exposure.

Common Symptoms

• Bone pain (lower back, hips, ribs)

• Muscle weakness

• Persistent fatigue

• Joint pain

• General feeling of weakness

Clinical Signs

• Osteomalacia (soft bones in adults)

• Rickets (in children)

• Increased risk of fractures

• Reduced bone density (osteopenia or osteoporosis)

Combined Symptoms (Calcium + Vitamin D Deficiency)

Because these nutrients work together, deficiencies often overlap:

• Muscle cramps and spasms

• Bone pain

• Muscle weakness

• Chronic fatigue

• Tingling in hands and feet

• Increased fracture risk

Severe Calcium Deficiency (Medical Emergency Signs)

Severe hypocalcaemia requires urgent medical attention.

Neurological and Muscular Symptoms

• Tetany (painful, sustained muscle contractions)

• Carpopedal spasm (involuntary hand contraction)

• Intense tingling in lips, tongue, and fingers

• Seizures

Cardiac Symptoms

• Irregular heartbeat (arrhythmias)

• Palpitations

• Prolonged QT interval (seen on ECG)

Other Serious Signs

• Confusion

• Severe irritability

• Laryngospasm (rare but life-threatening breathing difficulty)

Severe Vitamin D Deficiency

Bone-Related Symptoms

• Severe bone pain

• Fragile bones and frequent fractures

• Osteomalacia (soft bones in adults)

Muscle Symptoms

• Significant muscle weakness

• Difficulty walking

• Increased risk of falls

In Children

• Rickets

• Bowed legs (O-shape or X-shape)

• Skeletal deformities

Causes of Calcium and Vitamin D Deficiency

• Limited sun exposure (common in the UK)

• Poor diet lacking dairy or fortified foods

• Digestive disorders affecting absorption

• Kidney or liver conditions

• Age-related changes

• Certain medications

How to Prevent and Treat Deficiency

Diet

Include calcium-rich foods such as:

• Dairy products (milk, cheese, yoghurt)

• Leafy greens (kale, broccoli)

• Fortified foods

Vitamin D Sources

• Safe sun exposure

• Oily fish (salmon, mackerel)

• Eggs

• Supplements (if needed)

Medical Support

If you suspect a deficiency, it’s important to get tested and receive personalised treatment.

When to See a Doctor

You should seek medical advice if you experience:

• Persistent fatigue or muscle weakness

• Bone pain

• Frequent cramps or tingling

• History of fractures

• Symptoms that worsen over time

Book a Consultation