Vitamins & Deficiency Diseases MCQs 2026

80 questions with detailed answers · 0 from past papers · 8 quiz batches available

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Page 1 of 1 Questions 1–10 of 80

Q1 hard

What is the chemical name for Vitamin B5
1. A Pantothenic acid
2. B Biotin
3. C Folic acid
4. D Niacin
💡 Explanation:
Vitamin B5 is chemically known as Pantothenic acid.
Q2 medium

Which vitamin, though not commonly deficient, plays a key role as an antioxidant protecting cell membranes from damage
1. A Vitamin B1
2. B Vitamin B6
3. C Vitamin E
4. D Vitamin B9
💡 Explanation:
Vitamin E functions as a fat-soluble antioxidant, protecting cell membranes from oxidative damage.
Q3 medium

Which vitamin is essential for the maturation of red blood cells and can be deficient in strict vegetarians/vegans if unsupplemented
1. A Vitamin B12
2. B Vitamin C
3. C Vitamin D
4. D Vitamin K
💡 Explanation:
Vitamin B12 is primarily found in animal products, making strict vegans particularly susceptible to deficiency without supplementation.
Q4 easy

Which vitamin is particularly important for immune function and wound healing, alongside its antioxidant role, commonly found in citrus fruits
1. A Vitamin A
2. B Vitamin C
3. C Vitamin D
4. D Vitamin K
💡 Explanation:
Vitamin C supports immune function, wound healing, and acts as an antioxidant.
Q5 easy

A deficiency of which vitamin can lead to a condition characterized by swollen, bleeding gums and loosening teeth
1. A Vitamin A
2. B Vitamin B12
3. C Vitamin C
4. D Vitamin D
💡 Explanation:
Scurvy, caused by Vitamin C deficiency, notably causes swollen, bleeding gums and tooth loss.
Q6 hard

Which vitamin deficiency is associated with dermatitis, diarrhea, and dementia, sometimes called the "three D's"
1. A Vitamin B1 deficiency
2. B Vitamin B3 deficiency (Pellagra)
3. C Vitamin B12 deficiency
4. D Vitamin C deficiency
💡 Explanation:
Pellagra, caused by Niacin (B3) deficiency, is classically associated with dermatitis, diarrhea, and dementia.
Q7 medium

Which mineral is essential for proper nerve and muscle function, with deficiency linked to muscle cramps
1. A Iodine
2. B Potassium
3. C Iron
4. D Zinc
💡 Explanation:
Potassium is crucial for proper nerve signaling and muscle function.
Q8 easy

Which mineral deficiency commonly causes anemia, characterized by fatigue and weakness
1. A Calcium
2. B Iron
3. C Zinc
4. D Potassium
💡 Explanation:
Iron deficiency is the most common cause of anemia worldwide.
Q9 easy

Which mineral is essential for strong bones and teeth, with deficiency linked to osteoporosis
1. A Iron
2. B Calcium
3. C Iodine
4. D Sodium
💡 Explanation:
Calcium is essential for bone health; its deficiency can lead to osteoporosis.
Q10 easy

Good dietary sources of Vitamin C include which of the following
1. A Citrus fruits like oranges and lemons
2. B Red meat
3. C Dairy products
4. D Grains
💡 Explanation:
Citrus fruits are among the richest natural sources of Vitamin C.
Q11 medium

Which group of vitamins includes A, D, E, and K, all sharing a common solubility property
1. A Water-soluble vitamins
2. B Fat-soluble vitamins
3. C Mineral vitamins
4. D Trace vitamins
💡 Explanation:
Vitamins A, D, E, and K are collectively known as fat-soluble vitamins.
Q12 medium

Which vitamin deficiency is specifically associated with dry, scaly skin and poor wound healing, alongside vision problems
1. A Vitamin A
2. B Vitamin B1
3. C Vitamin B12
4. D Vitamin K
💡 Explanation:
Vitamin A deficiency causes both vision problems and skin issues, including dryness and poor healing.
Q13 easy

Good dietary sources of Vitamin A include which of the following
1. A Carrots and liver
2. B Citrus fruits
3. C Fish and dairy
4. D Green leafy vegetables only
💡 Explanation:
Carrots and liver are rich sources of Vitamin A (as beta-carotene and retinol respectively).
Q14 easy

Good dietary sources of Vitamin D include which of the following
1. A Sunlight exposure and fatty fish
2. B Citrus fruits
3. C Green leafy vegetables
4. D Grains
💡 Explanation:
Vitamin D is primarily obtained through sunlight exposure and dietary sources like fatty fish and egg yolks.
Q15 easy

Which mineral deficiency is commonly associated with goiter, an enlargement of the thyroid gland
1. A Iron
2. B Iodine
3. C Calcium
4. D Zinc
💡 Explanation:
Iodine deficiency causes goiter due to the thyroid gland's inability to produce sufficient hormones.
Q16 medium

Which of the following vitamins is water-soluble
1. A Vitamin A
2. B Vitamin D
3. C Vitamin K
4. D Vitamin C
💡 Explanation:
Vitamin C is water-soluble, unlike the fat-soluble vitamins A, D, E, and K.
Q17 medium

Deficiency of Vitamin D in adults primarily causes which condition
1. A Rickets
2. B Osteomalacia
3. C Scurvy
4. D Beriberi
💡 Explanation:
In adults, Vitamin D deficiency causes Osteomalacia, softening of the bones.
Q18 easy

Which vitamin is essential for blood clotting
1. A Vitamin A
2. B Vitamin C
3. C Vitamin D
4. D Vitamin K
💡 Explanation:
Vitamin K plays a crucial role in blood clotting (coagulation).
Q19 easy

Deficiency of Vitamin D primarily causes which disease in children
1. A Scurvy
2. B Rickets
3. C Beriberi
4. D Pellagra
💡 Explanation:
Vitamin D deficiency in children causes Rickets, characterized by soft, weak bones.
Q20 easy

Which vitamin is produced in the human skin upon exposure to sunlight
1. A Vitamin A
2. B Vitamin C
3. C Vitamin D
4. D Vitamin K
💡 Explanation:
Vitamin D is synthesized in the skin when exposed to ultraviolet sunlight.
Q21 easy

Deficiency of Vitamin C causes which disease
1. A Scurvy
2. B Rickets
3. C Beriberi
4. D Pellagra
💡 Explanation:
Vitamin C deficiency causes Scurvy, characterized by bleeding gums and poor wound healing.
Q22 medium

Deficiency of Vitamin K primarily results in which problem
1. A Excessive bleeding
2. B Night blindness
3. C Bone softening
4. D Anemia
💡 Explanation:
Vitamin K deficiency impairs blood clotting, leading to excessive bleeding.
Q23 medium

Which vitamin is known as Cobalamin
1. A Vitamin B6
2. B Vitamin B9
3. C Vitamin B12
4. D Vitamin C
💡 Explanation:
Vitamin B12 is chemically known as Cobalamin.
Q24 medium

Deficiency of Vitamin B12 primarily causes which condition
1. A Pernicious anemia
2. B Scurvy
3. C Rickets
4. D Beriberi
💡 Explanation:
Vitamin B12 deficiency leads to pernicious anemia and neurological problems.
Q25 medium

Which vitamin is known as Folic Acid or Folate
1. A Vitamin B6
2. B Vitamin B9
3. C Vitamin B12
4. D Vitamin C
💡 Explanation:
Vitamin B9 is known as Folic Acid or Folate, essential during pregnancy for fetal development.
Q26 medium

Deficiency of Folic Acid (Vitamin B9) during pregnancy is particularly linked to what condition in the fetus
1. A Neural tube defects
2. B Night blindness
3. C Rickets
4. D Scurvy
💡 Explanation:
Folic acid deficiency during pregnancy is strongly linked to neural tube defects like spina bifida.
Q27 easy

Which vitamin is known as Ascorbic Acid
1. A Vitamin A
2. B Vitamin B12
3. C Vitamin C
4. D Vitamin D
💡 Explanation:
Vitamin C is chemically known as Ascorbic Acid.
Q28 medium

Which vitamin is known as Tocopherol, acting as an antioxidant
1. A Vitamin A
2. B Vitamin E
3. C Vitamin C
4. D Vitamin K
💡 Explanation:
Vitamin E, known as Tocopherol, functions as an important antioxidant in the body.
Q29 easy

Deficiency of Vitamin B1 (Thiamine) causes which disease
1. A Scurvy
2. B Beriberi
3. C Pellagra
4. D Rickets
💡 Explanation:
Thiamine deficiency causes Beriberi, affecting the nervous and cardiovascular systems.
Q30 medium

Which vitamin is known as Riboflavin
1. A Vitamin B1
2. B Vitamin B2
3. C Vitamin B3
4. D Vitamin B6
💡 Explanation:
Vitamin B2 is chemically known as Riboflavin.
Q31 medium

Deficiency of Vitamin B2 (Riboflavin) primarily causes what condition
1. A Beriberi
2. B Cracks at corners of the mouth (Ariboflavinosis)
3. C Scurvy
4. D Rickets
💡 Explanation:
Riboflavin deficiency commonly causes cracked lips, sore throat, and inflammation of the mouth.
Q32 easy

Deficiency of Vitamin A primarily causes which condition
1. A Scurvy
2. B Night blindness
3. C Rickets
4. D Beriberi
💡 Explanation:
Vitamin A deficiency leads to night blindness and can cause more severe eye damage if prolonged.
Q33 easy

Which vitamin is known as Thiamine
1. A Vitamin B1
2. B Vitamin B2
3. C Vitamin B6
4. D Vitamin B12
💡 Explanation:
Vitamin B1 is chemically known as Thiamine.
Q34 medium

Which vitamin is known as Niacin
1. A Vitamin B2
2. B Vitamin B3
3. C Vitamin B6
4. D Vitamin B12
💡 Explanation:
Vitamin B3 is chemically known as Niacin.
Q35 medium

Deficiency of Vitamin B3 (Niacin) causes which disease
1. A Pellagra
2. B Scurvy
3. C Rickets
4. D Beriberi
💡 Explanation:
Niacin deficiency causes Pellagra, characterized by dermatitis, diarrhea, and dementia.
Q36 easy

Which vitamin is also known as Retinol
1. A Vitamin A
2. B Vitamin B1
3. C Vitamin C
4. D Vitamin D
💡 Explanation:
Vitamin A is chemically known as Retinol, important for vision and immune function.
Q37 medium

Which vitamin is known as Pyridoxine
1. A Vitamin B3
2. B Vitamin B6
3. C Vitamin B9
4. D Vitamin B12
💡 Explanation:
Vitamin B6 is chemically known as Pyridoxine.
Q38 hard

Deficiency of Biotin (Vitamin B7) can lead to which symptoms
1. A Hair loss and skin rashes
2. B Night blindness
3. C Scurvy
4. D Rickets
💡 Explanation:
Biotin deficiency is associated with hair loss, skin rashes, and brittle nails.
Q39 hard

What is the chemical name for Vitamin B7
1. A Pantothenic acid
2. B Biotin
3. C Cobalamin
4. D Riboflavin
💡 Explanation:
Vitamin B7 is chemically known as Biotin.
Q40 medium

Which of the following vitamins is fat-soluble
1. A Vitamin C
2. B Vitamin B12
3. C Vitamin D
4. D Vitamin B1
💡 Explanation:
Vitamin D, along with A, E, and K, is fat-soluble, while B-complex and C are water-soluble.
Q41 hard

Which vitamin deficiency disease was historically prevalent among populations whose diet consisted mainly of corn (maize) without proper preparation
1. A Scurvy
2. B Pellagra
3. C Rickets
4. D Beriberi
💡 Explanation:
Pellagra was historically common in populations relying heavily on untreated corn, which lacks accessible niacin.
Q42 hard

Nixtamalization, a traditional food preparation process for corn, helps prevent which vitamin deficiency disease by making niacin more bioavailable
1. A Scurvy
2. B Pellagra
3. C Rickets
4. D Beriberi
💡 Explanation:
Nixtamalization (treating corn with alkali) releases bound niacin, helping prevent pellagra in corn-dependent diets.
Q43 medium

The recommended primary method for preventing Vitamin D deficiency in most healthy individuals is what
1. A Regular, moderate sun exposure
2. B Avoiding sunlight entirely
3. C Only through dietary supplements
4. D Only through injections
💡 Explanation:
Regular, moderate sun exposure is generally the most natural and effective way for most people to maintain adequate Vitamin D levels.
Q44 medium

Which vitamin, when deficient, is particularly associated with impaired night vision that can progress to complete blindness if untreated
1. A Vitamin A
2. B Vitamin B6
3. C Vitamin C
4. D Vitamin E
💡 Explanation:
Untreated Vitamin A deficiency can progress from night blindness to xerophthalmia and complete blindness.
Q45 easy

Which of the following food sources is particularly rich in Vitamin B12, given its primary presence in animal products
1. A Meat, eggs, and dairy
2. B Citrus fruits
3. C Green leafy vegetables
4. D Whole grains
💡 Explanation:
Vitamin B12 is found almost exclusively in animal products such as meat, eggs, and dairy.
Q46 medium

Which vitamin plays an important role in converting food into energy and is found abundantly in whole grains, meat, and legumes
1. A Vitamin B1 (Thiamine)
2. B Vitamin C
3. C Vitamin D
4. D Vitamin K
💡 Explanation:
Thiamine (B1) is essential for converting carbohydrates into energy, found in whole grains, meat, and legumes.
Q47 medium

Which vitamin, found abundantly in nuts, seeds, and vegetable oils, is known for its skin health and antioxidant benefits
1. A Vitamin B6
2. B Vitamin C
3. C Vitamin E
4. D Vitamin K
💡 Explanation:
Vitamin E, abundant in nuts and seeds, supports skin health through its antioxidant properties.
Q48 medium

Which vitamin is particularly abundant in green leafy vegetables and plays a key role in blood clotting
1. A Vitamin A
2. B Vitamin B12
3. C Vitamin C
4. D Vitamin K
💡 Explanation:
Green leafy vegetables like spinach and kale are excellent sources of Vitamin K.
Q49 medium

Which vitamin's primary dietary sources include eggs, dairy products, and fortified cereals, alongside sunlight synthesis
1. A Vitamin A
2. B Vitamin C
3. C Vitamin D
4. D Vitamin B9
💡 Explanation:
Vitamin D is found in eggs, dairy, and fortified foods, in addition to being synthesized through sunlight exposure.
Q50 hard

Which scientist is credited with first isolating Vitamin C and later won a Nobel Prize for this and related work
1. A Albert Szent-Gyorgyi
2. B James Lind
3. C Casimir Funk
4. D Christiaan Eijkman
💡 Explanation:
Albert Szent-Gyorgyi isolated Vitamin C and received the Nobel Prize in Physiology or Medicine in 1937 for his work.
Q51 medium

Which vitamin deficiency was historically common among populations relying heavily on polished white rice as a dietary staple
1. A Vitamin A deficiency
2. B Vitamin B1 (Thiamine) deficiency
3. C Vitamin C deficiency
4. D Vitamin D deficiency
💡 Explanation:
Polished rice lacks the thiamine-rich outer bran layer, historically causing widespread beriberi in rice-dependent populations.
Q52 medium

Newborn infants are often given a Vitamin K injection shortly after birth for what reason
1. A To prevent bleeding disorders, since their natural levels are initially low
2. B To prevent scurvy
3. C To prevent rickets
4. D To boost immunity generally
💡 Explanation:
Newborns have naturally low Vitamin K levels, so a supplemental dose helps prevent potentially serious bleeding disorders.
Q53 hard

Who is credited with coining the term "vitamine," later shortened to "vitamin"
1. A Casimir Funk
2. B James Lind
3. C Christiaan Eijkman
4. D Frederick Hopkins
💡 Explanation:
Polish biochemist Casimir Funk coined the term "vitamine" in 1912 while researching nutritional deficiency diseases.
Q54 hard

Which scientist's research on beriberi in chickens in the Dutch East Indies contributed significantly to the discovery of Vitamin B1
1. A Christiaan Eijkman
2. B James Lind
3. C Casimir Funk
4. D Albert Szent-Gyorgyi
💡 Explanation:
Christiaan Eijkman's research on beriberi in chickens fed polished rice led to the discovery of thiamine deficiency's role in the disease.
Q55 medium

Which vitamin deficiency in the diet of pregnant women is specifically supplemented to help prevent birth defects of the brain and spine
1. A Vitamin B9 (Folic Acid)
2. B Vitamin B12
3. C Vitamin C
4. D Vitamin K
💡 Explanation:
Folic acid supplementation during pregnancy is specifically recommended to reduce the risk of neural tube defects.
Q56 hard

Which severe eye condition, caused by prolonged Vitamin A deficiency, involves drying and damage to the cornea
1. A Xerophthalmia
2. B Glaucoma
3. C Cataract
4. D Conjunctivitis only
💡 Explanation:
Xerophthalmia is a severe manifestation of Vitamin A deficiency, involving progressive corneal drying and damage.
Q57 hard

Excessive intake of which vitamin can lead to toxicity causing liver damage, due to its fat-soluble nature and storage in the body
1. A Vitamin A
2. B Vitamin B1
3. C Vitamin C
4. D Vitamin B9
💡 Explanation:
Because Vitamin A is fat-soluble and stored in the liver, excessive intake can accumulate to toxic levels causing liver damage.
Q58 medium

Which vitamin was historically linked to sailors on long voyages who lacked fresh fruits and vegetables
1. A Vitamin A
2. B Vitamin C
3. C Vitamin D
4. D Vitamin K
💡 Explanation:
Sailors historically suffered from scurvy due to Vitamin C deficiency from lack of fresh produce during long voyages.
Q59 hard

Which scientist is credited with discovering that citrus fruits could prevent and cure scurvy among sailors
1. A James Lind
2. B Casimir Funk
3. C Frederick Hopkins
4. D Christiaan Eijkman
💡 Explanation:
James Lind, a Scottish naval surgeon, conducted early clinical trials in 1747 demonstrating citrus fruits cured scurvy.
Q60 medium

The World Health Organization has identified Vitamin A deficiency as a leading cause of what preventable condition in developing countries
1. A Preventable childhood blindness
2. B Adult diabetes
3. C Heart disease
4. D Obesity
💡 Explanation:
Vitamin A deficiency remains a leading cause of preventable blindness among children in developing countries, per WHO data.
Q61 hard

Which of the following best describes megaloblastic anemia, associated with certain B-vitamin deficiencies
1. A Large, immature red blood cells due to impaired DNA synthesis
2. B Small red blood cells due to iron deficiency
3. C Excess red blood cell production
4. D Abnormally shaped white blood cells
💡 Explanation:
Megaloblastic anemia, linked to B12 or folate deficiency, involves the production of large, immature red blood cells.
Q62 medium

Government fortification programs commonly add which vitamin to wheat flour to combat widespread deficiency, alongside iron
1. A Vitamin C
2. B Folic Acid (Vitamin B9)
3. C Vitamin D
4. D Vitamin K
💡 Explanation:
Folic acid fortification of wheat flour is a common public health measure to reduce neural tube defects and address widespread deficiency.
Q63 medium

Which of the following symptoms is most classically associated with early Vitamin C deficiency
1. A Bleeding gums and slow wound healing
2. B Night blindness
3. C Muscle cramps only
4. D Hair loss specifically
💡 Explanation:
Bleeding, swollen gums and impaired wound healing are hallmark early symptoms of Vitamin C deficiency (scurvy).
Q64 hard

Which vitamin plays a key role in supporting the function of enzymes involved in amino acid metabolism
1. A Vitamin B6 (Pyridoxine)
2. B Vitamin C
3. C Vitamin D
4. D Vitamin K
💡 Explanation:
Vitamin B6 (Pyridoxine) is essential as a cofactor for numerous enzymes involved in amino acid metabolism.
Q65 medium

Alcohol dependency is often associated with deficiency of which vitamin, due to poor diet and absorption issues
1. A Vitamin C
2. B Vitamin B1 (Thiamine)
3. C Vitamin K
4. D Vitamin A
💡 Explanation:
Chronic alcohol use is commonly associated with Thiamine (Vitamin B1) deficiency due to poor diet and impaired absorption.
Q66 hard

Deficiency of which vitamin can specifically contribute to peripheral neuropathy, causing numbness and tingling in extremities
1. A Vitamin B6 or B12 deficiency (both can cause this)
2. B Vitamin C
3. C Vitamin A
4. D Vitamin K
💡 Explanation:
Both Vitamin B6 and B12 deficiencies can cause peripheral neuropathy, resulting in numbness and tingling sensations.
Q67 hard

Which vitamin, if taken in excessive supplemental doses over time, is most associated with peripheral nerve damage as a toxicity risk
1. A Vitamin B6 (in very high doses)
2. B Vitamin C
3. C Vitamin B1
4. D Vitamin B9
💡 Explanation:
Ironically, while Vitamin B6 deficiency causes neuropathy, extremely excessive supplemental doses have also been linked to nerve damage.
Q68 medium

Which vitamin deficiency-related disease was historically linked to certain populations relying heavily on polished grains without fortification
1. A Beriberi (Vitamin B1 deficiency)
2. B Scurvy
3. C Rickets
4. D Night blindness
💡 Explanation:
Beriberi was historically prevalent in populations relying on polished rice or grains stripped of thiamine-rich bran.
Q69 easy

The condition rickets, caused by Vitamin D deficiency, primarily affects which part of the body
1. A Muscles
2. B Bones
3. C Skin
4. D Blood
💡 Explanation:
Rickets primarily affects bone development, causing weak, soft, and deformed bones in children.
Q70 medium

Which vitamin, essential for vision, is also important for immune function and cell growth
1. A Vitamin A
2. B Vitamin B1
3. C Vitamin C
4. D Vitamin E
💡 Explanation:
Vitamin A supports vision, immune function, and healthy cell growth and differentiation.
Q71 medium

Which vitamin deficiency can impair the body's ability to absorb calcium properly, indirectly affecting bone health
1. A Vitamin C
2. B Vitamin D
3. C Vitamin B1
4. D Vitamin B6
💡 Explanation:
Vitamin D is essential for proper calcium absorption in the intestines, directly affecting bone health.
Q72 medium

Strict vegan diets, without supplementation, put individuals at particular risk for deficiency of which vitamin
1. A Vitamin A
2. B Vitamin C
3. C Vitamin B12
4. D Vitamin K
💡 Explanation:
Vitamin B12 is found almost exclusively in animal products, making strict vegans at risk without supplementation.
Q73 medium

Which vitamin's deficiency is more common in elderly individuals with limited sun exposure and dietary intake
1. A Vitamin C
2. B Vitamin D
3. C Vitamin B1
4. D Vitamin B9
💡 Explanation:
Vitamin D deficiency is common among elderly individuals due to reduced sun exposure and dietary intake.
Q74 medium

A diet lacking fresh fruits and vegetables for an extended period is most likely to cause deficiency in which vitamin
1. A Vitamin B12
2. B Vitamin C
3. C Vitamin D
4. D Vitamin B1
💡 Explanation:
A diet lacking fresh produce is a classic risk factor for Vitamin C deficiency, leading to scurvy.
Q75 medium

Which vitamin is particularly important for collagen synthesis, essential for skin and connective tissue health
1. A Vitamin A
2. B Vitamin C
3. C Vitamin D
4. D Vitamin K
💡 Explanation:
Vitamin C plays a critical role in collagen synthesis, essential for healthy skin, blood vessels, and connective tissue.
Q76 hard

Which severe neurological condition, associated with thiamine deficiency, is particularly linked to chronic alcoholism
1. A Wernicke-Korsakoff syndrome
2. B Pellagra
3. C Scurvy
4. D Rickets
💡 Explanation:
Wernicke-Korsakoff syndrome, a severe neurological condition, is strongly linked to thiamine deficiency in chronic alcoholism.
Q77 medium

What broad term is used to describe illness caused by insufficient intake of essential vitamins or minerals
1. A Malnutrition (specifically micronutrient deficiency)
2. B Obesity
3. C Food poisoning
4. D Allergic reaction
💡 Explanation:
Deficiency diseases fall under the broader category of malnutrition, specifically related to micronutrient deficiency.
Q78 medium

Which vitamin is added to milk in many countries specifically to help prevent rickets
1. A Vitamin A
2. B Vitamin C
3. C Vitamin D
4. D Vitamin B12
💡 Explanation:
Milk is commonly fortified with Vitamin D in many countries specifically to help prevent rickets in children.
Q79 hard

Which vitamin, in excess, can be particularly dangerous during pregnancy, potentially causing birth defects
1. A Vitamin C (excess is low risk)
2. B Vitamin A (excess, especially as retinol)
3. C Vitamin B1
4. D Vitamin B9
💡 Explanation:
Excessive Vitamin A intake, particularly as preformed retinol, during pregnancy is associated with an increased risk of birth defects.
Q80 medium

Which vitamin's deficiency can be assessed through symptoms like fatigue, pale skin, and shortness of breath, related to red blood cell issues
1. A Vitamin A
2. B Vitamin B12 (and B9)
3. C Vitamin D
4. D Vitamin K
💡 Explanation:
Both Vitamin B12 and B9 deficiencies can cause anemia-related symptoms like fatigue, pale skin, and shortness of breath.

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