healthy food

There are lots of snack bars to choose from inside a supermarket. It can be difficult to discern which ones are healthy and which ones are not whenmtrying to be careful about your food choices. What are the things that you need to look for when selecting a snack bar? These guidelines may help you in choosing a healthy snack bar by means of reading product labels:
When you are a very busy person, you might want to choose a healthy snack bar which can give 600 kJ. Looking at the energy content also includes taking in consideration the size of the snack bar. For example, 30 g Snack Bar A at 500 kJ will satisfy your energy needs more than a 20 g Snack Bar B at 520 kJ.

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As much as possible, avoid snack bars that contain saturated fat. If you really want that snack bar, better aim for less than 2 g per bar. Saturated fat is harmful, because excessive intake may cause heart disease or even cancer. While the overall fat content may be large, you must look at the saturated fat content, because if Snack Bar A has 5 g of overall fat and contains 0 g of saturated fat, then it is better than Snack Bar B which has 4 g of overall fat but contains 1 g of saturated fat. All in all, the total fat content must be 5 g or less in a snack bar to be considered “healthy.”

To complete the trio with fat and energy content, make sure you check the sugar level of the snack bar. Several snack bars contain sugar, which comprises almost half of their total weight. High sugar levels are not favorable because too much sugar can temporarily boost energy, but this energy declines very fast. As much as possible, look for snack bars with less than 9 g of sugar.After looking at the nutritional facts, you may also want to check out which food substances are used in making the snack bar. Healthy snack bars will list oats, raisins, bran, honey, fruits and other natural ingredients.

The Keys to a Healthy Diet

Developing healthy eating habits isn't as confusing or as restrictive as many people imagine. The first principle of a healthy diet is simply to eat a wide variety of foods. This is important because different foods make different nutritional contributions.
Secondly, fruits, vegetables, grains, and legumes—foods high in complex carbohydrates, fiber, vitamins, and minerals, low in fat, and free of cholesterol—should make up the bulk of the calories you consume. The rest should come from low-fat dairy products, lean meat and poultry, and fish.
You should also try to maintain a balance between calorie intake and calorie expenditure—that is, don't eat more food than your body can utilize. Otherwise, you will gain weight. The more active you are, therefore, the more you can eat and still maintain this balance.
Following these three basic steps doesn't mean that you have to give up your favorite foods. As long as your overall diet is balanced and rich in nutrients and fiber, there is nothing wrong with an occasional cheeseburger. Just be sure to limit how frequently you eat such foods, and try to eat small portions of them.
You can also view healthy eating as an opportunity to expand your range of choices by trying foods—especially vegetables, whole grains, or fruits—that you don't normally eat. A healthy diet doesn't have to mean eating foods that are bland or unappealing.
The following basic guidelines are what you need to know to construct a healthy diet.
1 Eat plenty of high-fiber foods—that is, fruits, vegetables, beans, and whole grains. These are the "good" carbohydrates—nutritious, filling, and relatively low in calories. They should supply the 20 to 30 grams of dietary fiber you need each day, which slows the absorption of carbohydrates, so there’s less effect on insulin and blood sugar, and provides other health benefits as well. Such foods also provide important vitamins, minerals, and phytochemicals (plant chemicals essential to good health).
2 Make sure to include green, orange, and yellow fruits and vegetables—such as broccoli, carrots, cantaloupe, and citrus fruits. The antioxidants and other nutrients in these foods may help protect against developing certain types of cancer and other diseases. Eat five or more servings a day.
3 Limit your intake of sugary foods, refined-grain products such as white bread, and salty snack foods. Sugar, our No.1 additive, is added to a vast array of foods. Just one daily 12-ounce can of soda (160 calories) can add up to 16 pounds over the course of a year. Many sugary foods are also high in fat, so they’re calorie-dense.
4 Cut down on animal fat. It’s rich in saturated fat, which boosts blood cholesterol levels and has other adverse health effects. Choose lean meats, skinless poultry, and nonfat or low-fat or nonfat dairy products.
5 Cut way down on trans fats, supplied by hydrogenated vegetable oils used in most processed foods in the supermarket and in many fast foods.
6 Eat more fish and nuts, which contain healthy unsaturated fats. Substitute olive or canola oil for butter or stick margarine.
7 Keep portions moderate, especially of high-calorie foods. In recent years serving sizes have ballooned, particularly in restaurants. Choose a starter instead of an entrée, split a dish with a friend, and don’t order supersized anything.
8 Keep your cholesterol intake below 300 milligrams per day. Cholesterol is found only in animal products, such as meats, poultry, dairy products, and egg yolks.
9 Eat a variety of foods. Don't try to fill your nutrient requirements by eating the same foods day in, day out. It is possible that not every essential nutrient has been identified, and so eating a wide assortment of foods helps to ensure that you will get all the necessary nutrients. In addition, this will limit your exposure to any pesticides or toxic substances that may be present in one particular food.
10 Maintain an adequate calcium intake. Calcium is essential for strong bones and teeth. Get your calcium from low-fat sources, such as skim milk and low-fat yogurt. If you can't get the optimal amount from foods, take supplements.
11 Try to get your vitamins and minerals from foods, not from supplements. Supplements cannot substitute for a healthy diet, which supplies nutrients and other compounds besides vitamins and minerals. Foods also provide the "synergy" that many nutrients require to be efficiently used in the body.
12 Maintain a desirable weight. Balance energy (calorie) intake with energy output. Exercise and other physical activity are essential.
13 If you drink alcohol, do so in moderation. That is one drink a day for women, two a day for men. A drink is defined as 12 ounces of beer, 4 ounces of wine, or 1.5 ounces of 80-proof spirits. Excess alcohol consumption leads to a variety of health problems. And alcoholic beverages can add many calories to your diet without supplying nutrients.

Eating Habits of Human Beings

The term eating habits (or food habits ) refers to why and how people eat, which foods they eat, and with whom they eat, as well as the ways people obtain, store, use, and discard food. Individual, social, cultural, religious, economic, environmental, and political factors all influence people's eating habits.
Why and How People Eat
All humans eat to survive. They also eat to express appreciation, for a sense of belonging, as part of family customs, and for self-realization. For example, someone who is not hungry may eat a piece of cake that has been baked in his or her honor.

People eat according to learned behaviors regarding etiquette, meal and snack patterns, acceptable foods, food combinations, and portion sizes. Etiquette refers to acceptable behaviors. For example, for some groups it is acceptable to lick one's fingers while eating, while for other groups this is rude behavior. Etiquette and eating rituals also vary depending on whether the meal is formal, informal, or special (such as a meal on a birthday or religious holiday).
A meal is usually defined as the consumption of two or more foods in a structured setting at a set time. Snacks consist of a small amount of food or beverage eaten between meals. A common eating pattern is three meals (breakfast, lunch, and dinner) per day, with snacks between meals. The components of a meal vary across cultures, but generally include grains, such as rice or noodles; meat or a meat substitute, such as fish, beans, or tofu ; and accompaniments, such as vegetables. Various food guides provide suggestions on foods to eat, portion sizes, and daily intake. However, personal preferences, habits, family customs, and social setting largely determine what a person consumes.
What and how people eat is determined by a variety of factors, including economic circumstances, cultural norms, and religious restrictions. Here, an Iranian family sits on the floor and eats from a cloth laden with regional delicacies.

Vegetarian and vegan diets

Read the answers to common questions about staying healthy on a vegetarian or vegan diet, from looking after your bones to healthy eating in pregnancy.
What is a vegetarian?
A vegetarian is someone who doesn't eat meat, fish, poultry or any animal by-products, such as gelatine. Vegetarians eat grains, pulses, nuts, seeds, fruit and vegetables, eggs, milk and dairy products. Vegetarians who don't eat any dairy products or eggs are called vegans.

At what age is it safe to become a vegetarian or vegan?
As long as they get all the nutrients they need, children can be brought up healthily on a vegetarian or vegan diet. Children need plenty of energy to help them grow and develop.
Children also need protein and iron to grow and develop. Good sources of protein and iron for vegetarians are:

• 　　eggs
• 　　nuts (don’t give whole nuts to children under five as they could choke)
• 　　pulses, such as beans, lentils and peas
• 　　foods made from pulses, such as tofu, hummus and soya mince

It's also important that children get enough vitamin B12 and vitamin D.
Sources of vitamin B12 include:

• 　　fortified breakfast cereals
• 　　eggs
• 　　dairy products
• 　　some yeast extracts such as Marmite

Vitamin D can be made by the body when the skin is exposed to summer sunlight. Food sources of vitamin D include:

• 　　eggs
• 　　margarine
• 　　fortified breakfast cereals

Vitamin drops are important for vegetarian and vegan children between six months and five years old. If your child is older than this, speak to your GP or a dietitian to see whether vitamin drops should be included in their diet.
All children aged six months to five years old are advised to take vitamin D supplements, unless they drink more than 500ml (about a pint) of infant formula a day.
Can babies and children eat a vegetarian diet?
If you’re bringing up your child on a diet without meat (vegetarian) or without any food from animals (vegan), they will need two or three portions of vegetable protein or nuts every day to give them enough protein and iron.
Don’t give whole nuts to children under five as they could choke. Grind the nuts finely or use a smooth nut butter. You’ll also need to make sure they get enough calcium, vitamin B12 and vitamin D. Vitamin drops are especially important for vegetarian and vegan children between six months and five years old.
Can babies have a vegan diet?
Take care when feeding children on a vegan diet. To get the energy and vitamins they need for growth, they require a wide variety of foods.
A vegan diet can be bulky and high in fibre, and this can mean that children get full up before they’ve eaten enough calories. Because of this, they may need extra supplements. Ask a dietitian or doctor for advice before you start introducing your child to solids.
If you’re breastfeeding and you’re on a vegan diet, it’s especially important for you to take a vitamin D supplement. You may also need extra vitamin B12.
Is it safe to be a vegetarian or vegan during pregnancy?
A varied and balanced vegetarian or vegan diet can provide enough nutrients for you and your baby during pregnancy. However, you might find it hard to get enough iron, vitamin D and vitamin B12. Talk to your doctor or midwife about how to get enough of these important nutrients. Read more about having a healthy diet during pregnancy. All pregnant and breastfeeding women, regardless of their diet, are advised to take a vitamin D supplement.
What are the health benefits of a vegetarian diet?
A vegetarian diet can be very healthy, but your diet won't automatically be healthier if you cut out meat. Like everyone, vegetarians need to make sure they eat a balanced diet that has:

• 　　plenty of fruit and vegetables (at least five portions of a variety a day)
• 　　plenty of potatoes, bread, rice, pasta and other starchy foods (choosing brown or wholegrain varieties where possible)
• 　　some milk and dairy foods
• 　　some eggs, beans and other non-dairy sources of protein
• 　　just a small amount of foods and drinks high in fat and sugar

Do vegetarians and vegans need vitamin supplements?
With good planning and an understanding of what makes up a healthy balanced vegetarian and vegan diet, you can get all the nutrients your body needs to be healthy without the need for supplements.
However, if your diet is not planned properly, you could miss out on essential nutrients. Vegetarians need to make sure they get enough iron and vitamin B12, and vegans enough calcium, iron and vitamin B12.
Good sources of iron include:

• 　　pulses
• 　　dried fruit
• 　　dark-green vegetables, such as watercress, broccoli, spring greens and okra
• 　　wholemeal bread
• 　　cereals fortified with iron

Vitamin B12 is only found naturally in foods from animal sources, so sources for vegans are limited and a vitamin B12 supplement may be needed. If you eat dairy products and eggs, you probably get enough.
Vegan sources of vitamin B12 include:

• 　　yeast extract, such as Marmite
• 　　breakfast cereals fortified with vitamin B12
• 　　soya products fortified with vitamin B12

Non-vegans get most of their calcium from dairy foods, so it's important for vegans to get calcium from other foods.
Good sources of calcium for vegans include:

• 　　fortified soya, rice and oat milk
• 　　sesame seeds
• 　　tahini
• 　　pulses
• 　　brown and white bread
• 　　dried fruit

How can I protect my bones?
Calcium helps maintain strong bones. Good sources of calcium are:

• 　　dairy products
• 　　leafy green vegetables
• 　　almonds
• 　　sesame seeds
• 　　dried fruit
• 　　pulses
• 　　fortified soya milk

The body needs vitamin D to absorb calcium. Fortified margarine and spreads, cereals and egg yolks contain vitamin D. The body also makes its own vitamin D when exposed to sunshine. Bones get stronger when you use them, and the best way to do this is with regular exercise.
Am I getting enough iron?
Although meat is the best source of iron, there is also iron in:

• 　　pulses
• 　　green vegetables, such as watercress, broccoli, spring greens and okra
• 　　bread
• 　　fortified breakfast cereals

What are good vegetarian sources of omega-3 fatty acids?
Sources of omega-3 fatty acids suitable for vegetarians include:

• 　　flaxseed oil
• 　　rapeseed oil
• 　　soya oil and soya-based foods (such as tofu)
• 　　walnuts
• 　　omega-3 fortified egg

Evidence suggests that the type of omega-3 fatty acids found in these foods may not have the same benefits for reducing the risk of heart disease as those found in oily fish.
However, if you follow a vegetarian diet, you can look after your heart by eating at least five portions of a variety of fruit and vegetables every day, cutting down on food that is high in saturated fat and watching how much salt you eat.
What are good sources of protein for vegetarians?
Good sources of protein for vegetarians include:

• 　　nuts and seeds
• 　　pulses and beans
• 　　soya products (tofu, soya milk and textured soya protein, such as soya mince)
• 　　cereals (wheat, oats and rice)
• 　　eggs
• 　　reduced-fat dairy products (milk, cheese and yogurt)

A variety of protein from different sources is necessary to get the right mixture of amino-acids, which are used to build and repair the body’s cells.
Are Quorn products suitable for vegans?
No. Since all Quorn products contain a small amount of egg white, and most also contain milk ingredients, they are not suitable for vegans. However, they can be a source of protein for vegetarians.
Do I need a special diet if I exercise?
You don't need a special diet for exercising if you're a vegetarian or vegan. The advice for vegetarians who exercise is the same as the advice for non-vegetarians who exercise regularly.
Most vegetarians have enough protein in their diet for the body to grow and repair itself. If you exercise regularly, make sure you eat plenty of complex carbohydrates (such as rice and pasta) for energy, and drink enough fluids when exercising harder.
Is it healthier to eat organic fruit and vegetables?
Vitamin and mineral levels in food vary depending on the soil the plants were grown in, when they were picked and how they were stored. There's no scientific evidence that organic food is healthier. Eating organic is a personal choice and many people eat organic for its environmental benefits. It's important to eat plenty of fruit and vegetables, whether they're organic or not.