sábado, 30 de abril de 2011

How much fruit and veg should I be eating?

avocado pear Lots! Fruit and veg should make up about a third of the food you eat each day. And it's also important to eat a variety. Five-a-day is a good, achievable target. If you count your portions each day it might help you to increase the amount you eat.

But what is a portion?
ONE portion = 80g = any of these
1 apple, banana, pear, orange or other similar sized fruit
2 plums or similar sized fruit
½ a grapefruit or avocado
1 slice of large fruit, such as melon or pineapple
3 heaped tablespoons of vegetables (raw, cooked, frozen or tinned)
3 heaped tablespoons of beans and pulses (however much you eat, beans and pulses count as a maximum of one portion a day)
3 heaped tablespoons of fruit salad (fresh or tinned in fruit juice) or stewed fruit
1 heaped tablespoon of dried fruit (such as raisins and apricots)
1 handful of grapes, cherries or berries
a dessert bowl of salad
a glass (150ml) of fruit juice (however much you drink, fruit juice counts as a maximum of one portion a day)

Getting your five portions a day

pears If you eat one or two portions with each meal and have the occasional fruit snack you might be surprised at how easy it is to eat five-a-day.
At breakfast you could:
  • add a handful of dried fruit to your cereal
  • eat half a grapefruit or an apple
  • drink a glass of fruit juice
At lunch you could:
  • eat a bowl of salad
  • have a banana sandwich
  • have some fruit salad
At your evening meal you could:
  • add vegetables or pulses to your curry, casserole or stir fry
  • serve at least two types of vegetables with your fish, chicken or meat
And don't forget, when you fancy a snack, reach for an apple, banana or perhaps even some dried fruit.

Getting the most out of fruit and veg

Carrots - baby sized Some vitamins and minerals can be easily lost when fruit and veg are prepared or cooked, so try to remember:
  • eat fresh fruit and veg as soon as possible rather than storing for a long time - or use frozen instead
  • don't overcook. Start with boiling water and cover tightly to keep in the steam, because this speeds up the cooking. You could use a steamer or a microwave
  • use as little water as possible when you cook fruit and veg. If you use the cooking water for sauce or soup, you'll recapture some of the lost vitamins and minerals
  • avoid leaving any vegetables open to the air, light or heat if they have been cut. Always cover and chill them. But don't soak, because vitamins and minerals can dissolve away
  • don't keep food hot for too long because vitamin levels start to drop within a few minutes

Why it's important

child eating melon Fruit and veg are good sources of many vitamins and minerals, yet most of us don't eat enough of them.
There is evidence to suggest that people who eat lots of fruit and veg are less likely to develop chronic diseases such as coronary heart disease and some cancers.
And don't forget, fruit and veg are also very low in fat.

Recommendations

pea pod big Eat a wide variety of fruit and vegetables and aim for at least five portions a day. Try to avoid:
  • adding fat or rich sauces to vegetables (such as carrots glazed with butter)
  • adding sugar or syrupy dressings to fruit (such as stewed apple)

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8 tips for eating well

Woman with kiwi These practical tips can help you make healthier choices. The two keys to a healthy diet are eating the right amount of food for how active you are and eating a range of foods to make sure you're getting a balanced diet.

A healthy balanced diet contains a variety of types of food, including lots of fruit, vegetables and starchy foods such as wholemeal bread and wholegrain cereals; some protein-rich foods such as meat, fish, eggs and lentils; and some milk and dairy foods.

On this page

 1. Base your meals on starchy foods

2. Eat lots of fruit and veg

3. Eat more fish

4. Cut down on saturated fat and sugar

5. Try to eat less salt - no more than 6g a day

6. Get active and try to be a healthy weight

7. Drink plenty of water

8. Don't skip breakfast



1. Base your meals on starchy foods


Woman eating pasta Starchy foods such as bread, cereals, rice, pasta and potatoes are a really important part of a healthy diet. Try to choose wholegrain varieties of starchy foods whenever you can.
Starchy foods should make up about a third of the food we eat. They are a good source of energy and the main source of a range of nutrients in our diet. As well as starch, these foods contain fibre, calcium, iron and B vitamins.
Most of us should eat more starchy foods - try to include at least one starchy food with each of your main meals. So you could start the day with a wholegrain breakfast cereal, have a sandwich for lunch, and potatoes, pasta or rice with your evening meal.
Some people think starchy foods are fattening, but gram for gram they contain less than half the calories of fat. You just need to watch the fats you add when cooking and serving these foods, because this is what increases the calorie content.

Why choose wholegrain foods?

sandwich layered Wholegrain foods contain more fibre and other nutrients than white or refined starchy foods.
We also digest wholegrain foods more slowly so they can help make us feel full for longer.
Wholegrain foods include:
  • Wholemeal and wholegrain bread, pitta and chapatti
  • Wholewheat pasta and brown rice
  • Wholegrain breakfast cereals

2. Eat lots of fruit and veg

Man eating fruit Most people know we should be eating more fruit and veg. But most of us still aren't eating enough.
Try to eat at least 5 portions of a variety of fruit and veg every day. It might be easier than you think.
You could try adding up your portions during the day.
For example, you could have:
  • a glass of juice and a sliced banana with your cereal at breakfast
  • a side salad at lunch
  • a pear as an afternoon snack
  • a portion of peas or other vegetables with your evening meal
You can choose from fresh, frozen, tinned, dried or juiced, but remember potatoes count as a starchy food, not as portions of fruit and veg.

3. Eat more fish

Fish being eaten with knife and fork Most of us should be eating more fish - including a portion of oily fish each week. It's an excellent source of protein and contains many vitamins and minerals.
Aim for at least two portions of fish a week, including a portion of oily fish. You can choose from fresh, frozen or canned - but remember that canned and smoked fish can be high in salt.

What are oily fish?

Some fish are called oily fish because they are rich in certain types of fats, called omega 3 fatty acids, which can help keep our hearts healthy.

How much oily fish?

Although most of us should be eating more oily fish, women who might have a baby one day should have a maximum of 2 portions of oily fish a week (a portion is about 140g). And 4 is the recommended maximum number of portions for other adults.
Examples of oily fish
Salmon, mackerel, trout, herring, fresh tuna, sardines, pilchards, eel
Examples of white or non-oily fish
Haddock, plaice, coley, cod, tinned tuna, skate, hake
Shark, swordfish and marlin
Don't have more than one portion a week of these types of fish. This is because of the high levels of mercury in these fish.
Anyone who regularly eats a lot of fish should try to choose as wide a variety as possible. Eating a wider variety of fish and shellfish will also help reduce the environmental impact.
For more information on fish and for advice - including recommended limits - for children, women who are pregnant, breastfeeding or trying for a baby, see the link below.

4. Cut down on saturated fat and sugar


Fats

Bread being spread To stay healthy we need some fat in our diets. What is important is the kind of fat we are eating. There are two main types of fat:
  • saturated fat - having too much can increase the amount of cholesterol in the blood, which increases the chance of developing heart disease
  • unsaturated fat - having unsaturated fat instead of saturated fat lowers blood cholesterol
Try to cut down on food that is high in saturated fat and have foods that are rich in unsaturated fat instead, such as vegetable oils (including sunflower, rapeseed and olive oil), oily fish, avocados, nuts and seeds.

Foods high in saturated fat

Try to eat these sorts of foods less often or in small amounts:
  • meat pies, sausages, meat with visible white fat
  • hard cheese
  • butter and lard
  • pastry
  • cakes and biscuits
  • cream, soured cream and crème fraîche
  • coconut oil, coconut cream or palm oil
For a healthy choice, use just a small amount of vegetable oil or a reduced-fat spread instead of butter, lard or ghee. And when you are having meat, try to choose lean cuts and cut off any visible fat.

How do I know if a food is high in fat?

Look at the label to see how much fat a food contains. Generally the label will say how many grams (g) of fat there are in 100g of the food.
Some foods also give a figure for saturated fat, or 'saturates'.
Use the following as a guide to work out if a food is high or low in fat.
Total fat - what's high and what's low?
High is more than 20g fat per 100g
Low is 3g fat or less per 100g
If the amount of fat per 100g is in between these figures, then that is a medium level of fat.
Saturated fat - what's high and what's low?
High is more than 5g saturates per 100g
Low is 1.5g saturates or less per 100g
If the amount of saturates per 100g is in between these figures, then that is a medium level of saturated fat.
Remember that the amount you eat of a particular food affects how much fat you will get from it.
Try to choose more foods that are low in fat and cut down on foods that are high in fat.

Sugar

cola cans open Most people in the UK are eating too much sugar. We should all be trying to eat fewer foods containing added sugar, such as sweets, cakes and biscuits, and drinking fewer sugary soft and fizzy drinks.
Having sugary foods and drinks too often can cause tooth decay, especially if you have them between meals. Many foods that contain added sugar can also be high in calories so cutting down could help you control your weight.

How do I know if a food is high in added sugar?

Take a look at the label. The ingredients list always starts with the biggest ingredient first.
But watch out for other words used to describe added sugars, such as sucrose, glucose, fructose, maltose, hydrolysed starch and invert sugar, corn syrup and honey. If you see one of these near the top of the list, you know the food is likely to be high in added sugars.
Another way to get an idea of how much sugar is in a food is to have a look for the 'Carbohydrates (of which sugars)' figure on the label. But this figure can't tell you how much is from added sugars, which is the type we should try to cut down on.
High is more than 15g sugars per 100g
Low is 5g sugars or less per 100g
If the amount of sugars per 100g is in between these figures, then that is a medium level of sugars.
Remember that the amount you eat of a particular food affects how much sugars you will get from it.
Sometimes you will only see a figure for total 'Carbohydrates', not for 'Carbohydrates (of which sugars)', which means the figure also includes the carbohydrate from starchy foods.

5. Try to eat less salt - no more than 6g a day

Man checking label on food tin Lots of people think they don't eat much salt, especially if they don't add it to their food. But don't be so sure!
Every day in the UK, 85% men and 69% women eat too much salt. Adults - and children over 11 - should have no more than 6g salt a day. Younger children should have even less.
Three-quarters (75%) of the salt we eat is already in the food we buy, such as breakfast cereals, soups, sauces and ready meals. So you could easily be eating too much salt without realising it.
Eating too much salt can raise your blood pressure. And people with high blood pressure are three times more likely to develop heart disease or have a stroke than people with normal blood pressure.

How do I know if a food is high in salt?

Check the label to find out the figure for salt per 100g.
High is more than 1.5g salt per 100g (or 0.6g sodium)
Low is 0.3g salt or less per 100g (or 0.1g sodium)
If the amount of salt per 100g is in between these figures, then that is a medium level of salt.
Remember that the amount you eat of a particular food affects how much salt you will get from it.

6. Get active and try to be a healthy weight


Women sitting with sports trainers on It's not a good idea to be either underweight or overweight. Being overweight can lead to health conditions such as heart disease, high blood pressure or diabetes. Being underweight could also affect your health.
Check if you are the right weight for your height using the link below.
If you're worried about your weight, ask your GP or a dietitian for advice. But if you think you just need to lose a little weight, the main things to remember are:
  • only eat as much food as you need
  • make healthy choices - it's a good idea to choose low-fat and low-sugar varieties, eat plenty of fruit and veg and wholegrains
  • get more active
It's also important to eat a variety of types of food so you get all the nutrients your body needs.
Physical activity is a good way of using up extra calories, and helps control our weight. But this doesn't mean you need to join a gym.
Just try to get active every day and build up the amount you do. For example, you could try to fit in as much walking as you can into your daily routine. Try to walk at a good pace.
Whenever we eat more than our body needs, we put on weight. This is because we store any energy we don't use up - usually as fat. Even small amounts of extra energy each day can lead to weight gain.
But crash diets aren't good for your health and they don't work in the longer term. The way to reach a healthy weight - and stay there - is to change your lifestyle gradually. Aim to lose about 0.5 to 1kg (about 1 to 2lbs) a week, until you reach a healthy weight for your height.

7. Drink plenty of water

Man drinking bottle of water We should be drinking about 6 to 8 glasses (1.2 litres) of water, or other fluids, every day to stop us getting dehydrated.
When the weather is warm or when we get active, our bodies need more than this. But avoid drinking soft and fizzy drinks that are high in added sugar.


Alcohol

There is nothing wrong with the occasional drink. But drinking too much can cause problems. Alcohol is also high in calories, so cutting down could help you control your weight.
Women can drink up to 2 to 3 units of alcohol a day and men up to 3 to 4 units a day, without significant risk to their health.
A unit is half a pint of standard strength (3 to 5% ABV) beer, lager or cider, or a pub measure of spirit. A glass of wine is about 2 units and alcopops are about 1.5 units.
For good health, it's a good idea to spread your drinking throughout the week and avoid binge drinking. Drinking heavily over a long period of time can damage the liver.


8. Don't skip breakfast

Woman eating cereal Breakfast can help give us the energy we need to face the day, as well as some of the vitamins and minerals we need for good health.
Some people skip breakfast because they think it will help them lose weight. But missing meals doesn't help us lose weight and it isn't good for us, because we can miss out on essential nutrients.
There is some evidence to suggest that eating breakfast can actually help people control their weight.
So why not go for a bowl of wholegrain cereal with some low-fat milk and sliced banana and a glass of fruit juice for a healthy start to the day?

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miércoles, 27 de abril de 2011

Less stress, better sleep may help you lose weight

 Less stress, better sleep may help you lose weight

 By Steven Reinberg, HealthDay

Try an all-natural supplement

If you're looking to lose those extra pounds, you should probably add reducing stress and getting the right amount of sleep to the list, say researchers from Kaiser Permanente's Center for Health Research in Portland.

In fact, although diet and exercise are the usual prescription for dropping pounds, high stress and too little sleep (or too much of it) can hinder weight loss even when people are on a diet, the researchers report.
"We found that people who got more than six but less than eight hours of sleep, and who reported the lowest levels of stress, had the most success in a weight-loss program," said study author Dr. Charles Elder.
Elder speculates if you are sleeping less or more than recommended and if your stress levels are high, you will not be able to focus on making behavioral changes.
These factors may also have a biological impact, he added.
"If you want to lose weight, things that will help you include reducing stress and getting the right amount of sleep," Elder said.
The report, funded by the U.S. National Institutes of Health, is published in the March 29 online edition of the International Journal of Obesity.
In this two-step trial, 472 obese adults were first counseled about lifestyle changes over a 26-week period. Recommendations included cutting 500 calories a day, eating a diet rich in fruits, vegetables and whole grains by following the Dietary Approaches to Stop Hypertension (DASH) diet approach, and exercising at least three hours a week.
In addition, the researchers asked the participants questions about sleep time, depression, insomnia, screen time and stress.
During this part of the trial, the participants lost an average of almost 14 pounds. The 60% of the participants who lost at least 10 pounds went on to take part in the next phase of the trial. Those in the second phase of the trial continued their diet and exercise program.
Elder's team found the right amount of sleep and stress reduction at the start of the trial predicted successful weight loss. Lower stress by itself predicted more weight loss during the first phase of the trial, they added.
Declines in stress and depression were also important in continuing to lose weight during both phases of the trial, as were exercise minutes and keeping food diaries, Elder's group found.
Dr. David L. Katz, director of the Prevention Research Center at Yale University School of Medicine, said that "while we often tend to look at health one condition at a time, the reality is that health is best viewed holistically."
"People who are healthy and vital tend to be healthy and vital not because of any one factor, but because of many. And the factors that promote health — eating well, being active, not smoking, sleeping enough, controlling stress, to name a few —promote all aspects of health," he added.
This study shows that people are more likely to lose weight when not impeded by sleep deprivation, stress or depression, he said.
"Anyone who has ever tried to lose weight probably could have said much the same from personal experience. Similarly, weight loss reduced stress and depression. This, too, is suggested by sense and common experience, as it is affirmed by the science reported here," Katz said.
The important message is that weight loss should not be looked at with tunnel vision, Katz said.
"Improving sleep may be as important to lasting weight control efforts as modifying diet or exercise. Managing stress is about physical health, as well as mental health. This study encourages weight loss in a more holistic context," he said.
Another study presented earlier this month at the American Heart Association scientific sessions held in Atlanta found that people of normal weight eat more when they sleep less.
Columbia University researchers discovered that sleep-deprived adults ate almost 300 calories more a day on average than those who got enough sleep. And the extra calories mostly came from saturated fat, which can spell trouble for waistlines.
The researchers came to their conclusions — which should be considered preliminary until published in a peer-reviewed journal — after following 13 men and 13 women of normal weight. They monitored the eating habits of the participants as they spent six days sleeping four hours a night and then six days sleeping nine hours a night (or the reverse).
"If sustained, the dietary choices made by people undergoing short sleep could predispose them to obesity and increased risk of cardiovascular disease," the researchers wrote in an American Heart Association news release.
[ ... ]

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