Water-soluble vitamins: These are vitamins that dissolve in water. 

Classification: 9 types

1. Vitamin C  

2. Vitamin B1 (Thiamine)  

3. Vitamin B2 (Riboflavin)  

4. Vitamin B3 (Niacin or nicotinic acid)  

5. Vitamin B5 (Pantothenic acid)  

6. Vitamin B6 (Pyridoxine or pyridoxal)  

7. Vitamin B7 (Biotin)  

8. Vitamin B9 (Folic acid or folate)  

9. Vitamin B12 (Cobalamin)

Sources of several water-soluble vitamins. 

1. Vitamin C: Citrus fruits (e.g., lemon, orange), tomato, amloki, green chili, and green vegetables.  

2. Thiamine (Vitamin B1):

• Plant sources: whole grain cereals, legumes, peas, nuts, beans, green leafy vegetables.  

• Animal sources: egg, meat, fish, liver, milk, and milk products.  

3. Riboflavin (Vitamin B2):
   
   
   
   
   

• Plant sources: whole grain cereals, legumes, peas, nuts, beans, green leafy vegetables.  

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• Animal sources: egg, meat, fish, liver, milk and milk products.  

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• Niacin (Vitamin B3):
  
  
  
  
  

• Exogenous:

• Plant sources: whole grain cereals, legumes, peas, nuts, beans, green leafy vegetables.  

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• Animal sources: egg, meat, fish, liver, milk & milk products.  

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• Endogenous: produced from the amino acid tryptophan.  

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• Pantothenic acid (Vitamin B5):
  
  
  
  
  

• Plant sources: whole grain cereals, legumes, nuts, peas, beans, green leafy vegetables.  

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• Animal sources: egg, meat, fish, liver, milk and milk products.  

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• Pyridoxine (Vitamin B6):
  
  
  
  
  

• Plant sources: whole grain cereals, legumes, green leafy vegetables.  

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• Animal sources: egg, meat, fish, liver, milk & milk products.  

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• Biotin (Vitamin B7):
  
  
  
  
  

• Exogenous:

  • Plant sources: whole grain cereals, legumes, peas, beans, green leafy vegetables.  

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  • Animal sources: egg, meat, fish, liver, milk & milk products.  

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• Endogenous: produced by gut flora.