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Nutrition for Life

 

 

Age 20-30-40

It is during our 20s that we often lay the foundations for the food habits of our lifetime and form preferences for what we like to eat. It is important to consider maintaining physical activity at all periods of your life as a way of maintaining your body mass. If you are particularly active your nutritional requirements will differ from those who lead a more sedentary life. The recommended daily intakes of vitamins and minerals listed in the table are an indication of what your body needs to function. They do not take into consideration the impact any medical conditions or advice, medication you may be taking, if you are unwell or recovering from illness.

During our 20s through to our 40s, nutritional requirements change mostly for pregnant women. Pregnant women, in consultation with their doctor's advice, need to consider increasing their consumption of calcium, iron and folate rich foods. Folate is important before and in the early days of pregnancy to in order to avoid the development of spina bifida in the baby. It is suggested that all women of childbearing age regularly eat foods containing folate.

Foods containing rich sources of folate can be found in the table below.

Later on, as women move towards their late 40s some may experience the first signs of menopause. It is at this time bone loss is accelerated, so women need to be prepared in order to prevent osteoporosis in later life. Men too can suffer from osteoporosis and they are most likely to develop an osteoporosis fracture in their 60s. Both men and women need to maintain their calcium intake throughout life. This can be achieved by including low fat dairy foods on a daily basis, undertaking some weight bearing exercise such as walking, as this can strengthen bones and help maintain a healthy body weight.

Some of the signs of menopause may be eased by choosing a high fibre, low fat and low salt diet. For example, including a variety of plant foods has been found to reduce many symptoms of menopause, such as hot flushes. Other good food sources to eat during this time include; soy products (tofu, soymilk), chickpeas, flax seeds, lentils, cracked wheat and barley.

Age 20-30-40    
Requirement
Recommended Daily Intake
Food Sources

Iron
Required to carry oxygen to every working muscle in our body.

12-16 mg 20-36 mg for pregnant women •  Red meat (100g raw lean beef contains 2 mg)

•  Chicken

•  Eggs 1 egg contains 1.2 mg)

•  Wholemeal bread (1 medium size wholemeal bread roll contains 2.1 mg)

•  Breakfast cereals with added iron
Calcium
Essential for strong healthy, bones and teeth
800 - 1000 mg/day 1100 mg/day for pregnant women •  Milk

•  Cheese (30g low fat tasty cheese contains 242 mg)

•  Oranges/orange juice

•  Almonds (100 g contains 250 mg)
Water
To maintain body temperature & adequate fluid levels within our body.
1-3 Litres/day depending upon climate and physical activity •  Fruit juice

•  Vegetable juice
Protein
Is required for the functioning of many chemical reactions within our body. Proteins are the building blocks of muscles and other structures within our body.
45g 51 g for pregnant women •  (100g raw lean beef contains 21.5 mg)

•  Chicken (100 g raw no skin chicken breast contains 22.5 g)

•  Fish

•  Cheese (30g low fat tasty cheese contains 8.5 mg)

•  Milk (300 mL of reduced fat milk contains 12 mg protein)

•  Fresh/frozen peas (100 g frozen peas contains 6 g)

•  Potatoes

•  Sweet corn
Zinc
Essential for a range of chemical process involving the conversion of food into energy. It is also involved in wound healing.
Up to 12.0 mg Up to 16.0 mg for pregnant women •  Meats 100g raw lean beef contains 3.5 mg zinc)

•  Eggs (1 boiled egg contains 1.4 mg)

•  Seafood
Magnesium
Necessary for neuromuscular activity. Plays an important role in metabolism.
Up to 320 mg for adult men Up to 270 mg for adult women 300 mg for pregnant women •  Whole grains

•  Nuts (137g of dry roasted cashews contains 356 mg)

•  Legumes (1 cup cooked red kidney beans contains 125 mcg).
Folate
Has been found to prevent neural tube defects in the babies. Required for protein synthesis.
200 mg 400 mg for pregnant women •  Green leafy vegetables

•  Whole grains
•  Nuts (137g of dry roasted cashews contains 94.5 mcg)

•  Some breakfast cereals have added folate

 

   
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