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Vitamin Bs, Folate and Biotin

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Vitamin B3 - Niacin or Nicotinic Acid

RDA: 20 mg (Children: 12-15mg)

Roles of vitamin B3 in the body

  • Important for continual supply of energy to all cells
  • Involved in metabolism of carbohydrates, protein and fats
  • Maintains normal functioning of skin, nerves and digestive tract
  • Enhances immune system

Deficiency: Symptoms of vitamin B3 deficiency include diarrhea, dermatitis, dementia, and soreness and ulceration of mouth corners.

Toxicity: High supplemental dosages (1-4 grams) used as a drug to lower blood cholesterol can cause nausea and skin flushing.

Good food sources of Vitamin B3: Fish, meats, liver, poultry, dried beans, nuts, yeast, Vegemite, wholegrain cereals are all good sources of vitamin B3
 

Food source Vitamin B3

Tuna, canned, 1/2 cup, 3.5 oz

Salmon, canned, 1/2 cup, 3.5 oz

Meat, cooked, 4.2 oz

Chicken, 3.5 oz

Fish, 1 fillet, 4.2 oz

Liver, fried, 1 slice, 1.4 oz

Peanuts, 1/4 cup, 1.4 oz

Muesli, 1/2 cup, 2 oz

Bread, w/meal, 4 slices, 4.2 oz

Pasta, wholemeal, cooked, 1cup 

Rice, brown, cooked, 1 cup 

Potato, 1 medium 

Soya Beans, 1/2 cup, 3.5 oz

Avocado, 1/2 large, 3.5 oz

Mushrooms, 2 oz serve 

Egg, boiled, 1 medium 

23 mg

17 mg

12 mg

12 mg

11 mg

8 mg

9 mg

5 mg

5 mg

4 mg

4 mg

3 mg

3 mg

2 mg

2 mg

1 mg


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Next: Vitamin B5 - Pantothenic Acid

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