Many people want to lose weight. But still there are many people who want to gain weight. Gaining weight for some people is really hard task. One should prefer natural food over supplement to gain weight. One easiest way to gain weight - "Like the food that you eat".

• Your mantra for today -- exercise
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• Your mantra for today -- exercise

The basic principle of weight gain is simple: You need to consume more calories than you expend. Follow these 10 tips.

Eat more calories

This involves some calculation. The approximate normal daily caloric requirement for an average male who performs light activity is 2,200; for a female, it is 1,900.You need to eat around 1,000 extra calories per day to gain less than half a kilo a week.

Do the math. Eat larger portions and eat at least five meals a day.

Your actual caloric requirement can differ depending on your height, weight, activity level and your body's metabolic rate.

Make smart choices

For example, choose dairy products, fish and meat over bread. Choose eggs over vegetables.

Eat foods with high protein content such as beans, pulses and peas, and foods with high starch content such as potatoes, rice and tapioca.

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Fluids help too

Drink a lot of fluids that supply nutrients and calories; milk, fresh fruit juices and energy drinks are good examples.

vi. Intensify workouts

Aerobics are great, right? Not for weight gain!

You need to exercise really hard and intensely to gain muscle mass.

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iii. Protein is important

Increase your protein intake. Your body needs a lot of protein to build new muscle. But since most of the calories for weight gain comes from carbohydrates and fats, do not replace them with protein.

iv. Snack a lot

Consume a lot of high-calorie snacks (not junk food) such as cheese sticks, milk shakes, muffins, dried fruits, yoghurt and breakfast bars.

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vii. Weights are the way to go

Focus on free weight exercises (which do not require machinery) that target your large muscle groups. For example, you need dumbells, not fancy gym machines.

Free weights put the most stress on muscles and stimulate the maximum number of muscle fibres.

The best weight training exercises for building muscle mass are free weight exercises like squats, dead lifts, bench presses, barbell rows, pull ups and bar dips.

These exercises are best done under supervision, but they don't need machinery.

viii. Space out your workouts

If you have a high basic metabolic rate -- which means you expend a lot of energy even at rest -- you need short intense workouts instead of long periods of low-stress activity.

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ix. Creatine?

Creatine supplements can help some athletes gain weight. It is not known if it is because it gives them spurts of energy or because it adds water weight.

More research is needed in this area before Creatine becomes that magic pill. Creatine supplements are available at all major health food stores, but do not take it without consulting your doctor.

x. Be consistent

It might take a long time, usually a few months, for the weight to actually show. Some people get frustrated and quit when they fail to see drastic results.

Your body will only responds to a consistent schedule. No weight gain programme will work for you if you are not regular.

Heredity does pay a major role in determining your weight. Effective weight training and a smart diet can help you exceed your genetically predetermined weight.

The high prevalence of obesity and overweight problems in our culture means much more emphasis is placed on losing weight rather than gaining weight. It is easy to forget about people who have the problem of being too thin.

Being underweight can result from eating disorders, chronic diseases, and it is also a concern for athletes and naturally thin people who wish to be bigger, stronger, and more muscular. Elderly people may become underweight. The gradual loss of taste and smell, or the inability to prepare healthy meals, results in becoming too thin.

While being overweight or obese is a well-known risk factor for chronic diseases, being too thin may also increase a person's risk of dying from diseases such as heart failure and cancer. Elderly women who are underweight may become frail, which means they are more likely to suffer from osteoporosis and hip fractures. Being underweight may also increase a man's chance of erectile dysfunction.

Increasing your intake of junk foods and greasy foods is not a good way to gain weight. Junk foods usually contain unhealthy trans fats or saturated fats. Even though you need to increase your calorie consumption to gain weight, those calories should come from foods that are good for you.

Healthy fats include omega-3 essential fatty acids sources like tuna, salmon, flax, and walnuts. Good sources of protein include lean meats, fish, poultry, nuts, seeds and legumes. Healthy carbohydrate sources include fruits, vegetables and whole grains.

It may be easier to eat five or six smaller balanced meals per day rather than eating three large meals, especially if you are not used to eating much at one sitting.

Protein powders and nutritional supplement drinks such as Ensure (buy direct) can be added as in-between meal snacks if you still need more calories. Some protein powders are flavored and only need added water and some others can be blended with your choice of juice or milk to improve the taste.

It would also be a healthy idea to add a small amount of flax seed oil and some psyllium powder to add some omega-3 essential fatty acids and extra fiber.

A high-quality multivitamin and mineral supplement is a good idea to make sure you are getting all of the vitamins and minerals you need. Some people find that their muscle mass increases with protein supplements that contain certain blends of amino acids such as creatine  and glutamine . Some people who are very ill may need liquid nutritional preparations that are available through their doctors.

Remember that it can take a while to gain the weight you need, but be patient and continue to choose healthy foods until you reach your goal weight.

Use these tips and tools to help gain weight:

• Start with this Calorie and Nutrition Guide to find out how many calories you will need to reach the weight you desire.
• Use a food diary to track your calorie intake to be sure you are getting all of the calories and foods that you need.
• You can also use an online program such as Calorie Count Plus to track your calorie intake, your exercise and your changes in weight. Calorie Count Plus has a large data base of nutrition information for almost any food you like to eat.
• Add healthy calories to breakfast with an extra slice of whole-grain toast and peanut butter.
• Mid-morning and afternoon snacks should be nutritious, not junk. Trail mixes contain healthy nuts, dried fruits and can add healthy calories to your diet.
• Don't add calories to your meals by choosing unhealthy fried foods such as french fries, chicken nuggets and fish sticks. Choose healthy foods such as baked potatoes, baked chicken and fish, just make your portions a bit bigger.
• Keep your meals balanced. One meal should have a healthy protein source such as fish, low fat meat, chicken or legumes plus two or three servings of vegetables. Green vegetables add lots of vitamins and phytonutrients while starchy potatoes and corn add extra calories.
• Drink healthy beverages such as milk and fruit juices to add calories. Don't choose sugary sodas, which only add calories and no nutrition.
• Design a weight training program with help from About.com's exercise site and our weight training site.

Recommended Ways to Gain Weight

• Have meals with the right balance of proteins, carbohydrates, and the right kinds of fat (such as unsaturated and monounsaturated fats, olive oil, canola oil, pistachios, almonds and walnuts). Heinemann suggests the following ratio: 60%-70% carbohydrates, 10%-15% protein, and a small amount of fat.
• Eat foods higher in calories, vitamins, and minerals, as opposed to higher in fat or sugar.
• Pack more nutritious calories in each serving. For example, you may add grated cooked eggs to mashed potatoes, ground chicken to soups and gravies, cheese in casseroles, eggs, and soups, and nonfat dried milk in soups, shakes, milk, and mashed potatoes.
• If you get too full too fast, try having more high-calorie foods or slices of foods as opposed to consuming the whole thing (raisins versus grapes, granola and Grape Nuts versus corn flakes, mango slices versus the whole mango).
• Limit drinking beverages to a half-hour before and after a meal.
• Drink mixed juices (apple/berry, peach/orange/banana as opposed to one juice beverages) for a higher calorie intake.
• Try a small amount of alcohol (4 ounces of wine, 6 ounces of beer, or a half-ounce of liquor with juice) before a meal, as it could stimulate appetite. Moore warns, however, that this recommendation must be cleared with your doctor, especially if you are on any medication. Too much alcohol can be detrimental to health, and could lessen your resolve for eating healthy.
• With moderation, you may add in good fat sources to meals such as nuts, avocado, olives, and fatty fish (salmon and mackerel).
• Snack in between meals. Nuts, dried fruits, and yogurt are good options, but it's also important to find nutritious foods that you will enjoy.
• Have a nutritious snack before bedtime, such as a peanut butter sandwich.