Vitamins, Deficiencies & Health Conditions

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Vitamins, Deficiencies & Health Conditions

Iron, B12 and vitamin D deficiencies are widespread in India and often go undiagnosed because the symptoms are vague. These guides explain the signs, the Indian food sources that help, and — importantly — when a blood test and a doctor beat guessing.

113 guides, written by the KABO Nutrition Team and fact-checked against public-health and peer-reviewed sources. Last updated 2026-08-05.

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Quick answers

Which deficiencies are most common in India?

Iron, vitamin B12 and vitamin D, followed by calcium. All three are widespread, often silent for months, and confirmed with a simple blood test.

What are the signs of vitamin B12 deficiency?

Persistent tiredness, tingling or numbness in hands and feet, a sore or smooth tongue, breathlessness and brain fog. Because the liver stores B12, symptoms appear gradually.

Can diet alone fix a deficiency?

Mild shortfalls often improve with food. A confirmed deficiency usually needs supplements at a dose your doctor sets, because diet alone raises levels too slowly.

Iron & anaemia (5)

B12, vitamin D & other vitamins (45)

Minerals: magnesium, zinc & more (10)

Blood sugar, thyroid & heart (16)

Liver, kidney, bones & immunity (27)

More in this section (10)

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