Introduction
The human body performs hundreds of functions daily. The multiple organs work in concert to keep the body functional. The heart pumps the blood throughout the body. Lungs capture the oxygen from air and the red blood cells transport this oxygen to every cell in the body. The nervous system sends hundreds of thousands of signals through sensory neurons to control the movements of bones and muscles. The digestive system helps to breakdown the food to extract nutrition so that the cells must be provided with energy. Other than that, there go multiple repairs and maintenance functions such as healing of wounds, bone formation, making blood cells and skin cells.
Our body requires raw materials to perform these functions. Other than the macronutrients the Carbohydrates, Proteins and Fats, our body needs small amounts of vitamins and minerals. Vitamins and minerals are the substances that our body cannot manufacture on its own and can only obtain from the food that we eat. These vitamins and minerals are so essential that our body cannot function well without them.
Vitamins:
Vitamin |
Important Functions |
UK Recommended Dietary Allowances |
Deficiency Disease |
Sources and Foods |
Vitamin A |
Boosting the Immune System Helping vision in dim light Protecting the lining of sensitive body parts |
Age: 19 – 64 0.7 mg/day for men 0.6 mg/day for women |
Night Blindness |
Cheese, Eggs, Oily Fish, Fortified Low-Fat Spreads, Milk and Yoghurt, Liver, Spinach, Carrots, Mango, Papaya, Apricot |
Vitamin B1 |
Helping in food break down The health of the nervous system |
Age: 19 – 64 1 mg/day for men 0.8 mg/day for women |
Beriberi |
Peas, Fresh and Dried Fruit, Eggs, Whole Grain Bread, Breakfast Cereal, Liver |
Vitamin B2 |
The health of skin, eyes and nervous system |
Age: 19 – 64 1.3mg a day for men 1.1 mg a day for women |
Ariboflavinosis, Glossitis, Angular Stomatitis |
Milk, Eggs, Fortified Breakfast Cereal, Oats, Cooked Beef, Mushrooms, Rice, |
Releasing energy from food |
Yoghurt |
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Vitamin B3 |
Releasing energy from food Keeping the nervous system healthy |
Age: 19 – 64 16.5 mg a day for men 13.2 mg a day for women |
Pellagra |
Meat, Fish, Wheat Flour, Eggs, Milk |
Vitamin B5 |
Releasing energy from food |
Must be taken every day |
Paresthesia |
Chicken, Beef, Potatoes, Porridge, Tomatoes, Kidneys, Eggs, Broccoli, Rice, Bread |
Vitamin B6 |
Allowing the body to use stored energy Making Hemoglobin |
Age: 19 – 64 1.4 mg a day for men 1.2 mg a day for women |
Anaemia, Peripheral Neuropathy |
Pork, Chicken, Turkey, Fish, Bread, Oatmeal, Brown rice, Eggs, Vegetables, Soybeans, Peanuts, Milk, Potatoes |
Vitamin B7 |
Breaking down fat |
Bacteria in the bowel makes Biotin |
Dermatitis, Enteritis |
Raw Egg Yolk, Liver, Peanuts, Leafy Green Vegetables |
Vitamin B9 |
Forming Red Blood Cells The health of the Nervous System |
200 micrograms of folate a day |
Megaloblastic Anemia |
Broccoli, Brussels Sprouts, Liver, Leafy Green Vegetables, Peas, Chickpeas, Cereals |
Vitamin B12 |
Making Red Blood Cells Keeping the Nervous System Healthy Releasing energy from food Using Folic Acid |
1.5 micrograms a day for adults of age 19 – 64 |
Anaemia |
Meat, Salmon, Cod, Milk, Cheese, Eggs, Cereals |
Vitamin C |
Protecting cells and keeps them healthy Maintaining healthy skin, bones, cartilage Healing wounds |
40 mg a day for adults of age 19 – 64 |
Scurvy |
Orange and Orange Juice, Red and Green Peppers, Strawberries, Broccoli, Brussels Sprouts, Potatoes |
10 micrograms a day for adults of age 19 – |
Salmon, Sardines, Herring, Mackerel, Red |
Vitamin D |
Keeping bones, teeth, muscles healthy |
64 Babies up to the age of 1 year need 8.5 to 10 micrograms |
Rickets |
Meat, Liver, Egg Yolks, Cereals |
Vitamin E |
Maintaining healthy skin and eyes Strengthening the immune system |
Age: 19 – 64 4 mg a day for men 3 mg a day for women |
Deficiency is very rare. |
Plant Oils such as Soya, Corn and Olive Oils, Nuts and Seeds, Wheat germ |
Vitamin K |
Heals the wounds properly |
1 microgram a day for each kilogram of the bodyweight |
Bleeding Diathesis |
Leafy Green Vegetables, Vegetable Oils, Cereal Grains |
Minerals:
Mineral |
Important Functions |
UK Recommended Dietary Allowances |
Deficiency Disease |
Sources and Foods |
Calcium |
Building Strong Bones and Teeth Regulating Muscle Contractions Controlling Heart Beat Blood Clotting |
Adults aged 19 – 64 need 700 mg/day |
Rickets in children Osteoporosis |
Milk, Cheese, Broccoli, Cabbage, Okra, Soya Beans, Tofu, Nuts, Bread, Sardines, Pilchards |
Iodine |
Making Thyroid Hormones Keeping cells and the metabolic rate of healthy |
Adults aged 19 – 64 need 0.14 mg/day |
Goitre |
Seaweed, Grains, Eggs, Iodized Salts, Sea Fish, Shell Fish |
Iron |
Making Red Blood Cells Carrying oxygen around the body |
8.7 mg for men over 18 Women aged 19 – 50 need 14.8 mg/day 8.7 mg for women over 50 |
Iron Deficiency Anaemia |
Liver, Meat, Beans, Nuts, Dried Fruits, Brown Rice, Cereals, Soy Bean Flour, Green Leafy Vegetables |
Chromium |
Influences the behaviour of Insulin Hormone Provides energy from food |
25 micrograms/day for adults |
Weight Loss, Confusion, Impaired Coordination, Increased risk of Diabetes |
Meat, Bread, Oats, Lentils, Broccoli, Potatoes, Spices |
Fish, Nuts, Green |
Cobalt |
A part of Vitamin B12 |
1.5 micrograms/day of Vitamin B12 |
Anaemia |
Leafy Vegetables, Cereals |
Copper |
Producing Red and White Blood Cells Triggering the release of iron to form haemoglobin |
Adults aged 19 – 64 need 1.2 mg/day |
Fatigue, Weakness, Reduced Iron Levels |
Nuts, Shellfish, Offal |
Magnesium |
Turning food into energy Ensuring normal functioning of Parathyroid gland |
Age: 19 – 64 300 mg a day for men 270 mg a day for women |
Tremor, Poor Coordination, Muscle Spasm, Loss of appetite |
Green Leafy Vegetables, Nuts, Brown Rice, Bread, Fish, Meat, Dairy Products |
Manganese |
Making and activating enzymes in the body |
Very small amounts that you get from the daily diet |
Impaired growth, Impaired reproductive function, Skeletal abnormalities |
Tea, Bread, Nuts, Cereal, Green Vegetables |
Molybdenum |
Making and activating proteins involved in a chemical reaction Repairing and making genetic material |
Very small amounts that you get from the daily diet |
Deficiency does not occur in humans |
Nuts, Tinned Vegetables, Cereal such as Oats, Peas, Leafy Green Vegetables, Cauliflower |
Phosphorus |
Building strong bones and teeth Releasing energy from food |
Adults need 550 mg/day |
Bone diseases such as Rickets and Osteomalacia |
Red Meat, Dairy foods, Fish, Poultry, Bread, Brown Rice, Oats |
Potassium |
Controlling the balance of fluids in the body Helping Heart muscles work properly |
Adults aged 19 – 64 need 3500 mg/day |
Chronic vomiting, Diarrhea, Excessive Sweating, Blood Loss |
Bananas, Broccoli, Parsnips, Brussels Sprouts, Pulses, Nuts, Seeds, Fish |
Selenium |
Helping Immune System work properly Helping damage to cells and tissues Improving Reproduction |
Age: 19 – 64 0.075 mg a day for men 0.06 mg a day for women |
Keshan Disease |
Brazil Nuts, Fish, Meat, Eggs |
Sodium Chloride |
Keeping the levels of fluids in the body balanced Digestion of food |
Adults need 6 g/day of salt |
Headache, Nausea, Vomiting Fatigue |
Ready Meals, Meat products, Cereals, Cheese, Tinned Vegetables, Bread |
Zinc |
Making new cells and enzymes Processing Carbohydrates, |
Age: 19 – 64 9.5 mg a day for men 7 mg a day for women |
Growth retardation, loss of appetite, hair |
Meat, Shell Fish, Milk, Cheese, Bread, CerealsMeat, Shell |
Proteins and Fats in food, Healing Wounds |
loss |
Fish, Milk, Cheese, Bread, Cereals |
Conclusion:
From the information recorded in the tables above, it can be fairly concluded that without vitamins and minerals, several of the body functions would not be performed. Vitamins and minerals are inevitable parts of our daily diet. Any deficiency can be fatal. But the bright side of the story is that most vitamins and minerals are a part of the diet we consume. Some specific foods even contain more than one vitamins. Dairy products, for example, contain many vitamins and minerals. Hence we need to balance our diet and makeup if there is any deficiency in our body of a vital vitamin or mineral.