A diet is whatever a person eats, regardless of the goal—whether it is losing weight, gaining weight, reducing fat intake, avoiding carbohydrates, or having no particular goal. However, the term is often used to imply a goal of losing weight, which is an obsession for many people.
Standard healthy diets for children and adults are based on the needs of average people who have certain characteristics:
Thus, for a particular person, a healthy diet may vary substantially from what is recommended in standard diets. For example, special diets are required by people who have diabetes, certain kidney or liver disorders, coronary artery disease, high cholesterol levels, osteoporosis, diverticular disease, chronic constipation, or food sensitivities. There are special dietary recommendations for young children, but little guidance is available for other age groups, such as older people.
Spotlight on Aging
The best diet for older people has not been determined. However, older people may benefit from changing some aspects of their diet, based on the way the body changes as it ages. No changes are required for some nutrients such as carbohydrates and fats.
Older people are more likely to have disorders or take drugs that can change the body’s nutritional needs or the body’s ability to meet those needs. Disorders and drugs can decrease appetite or interfere with the absorption of nutrients. When older people see their doctor, they should ask their doctor whether the disorders they have or the drugs they take affect nutrition in any way.
Weight Loss Diets
Weight loss requires consuming fewer calories than the body uses. Losing ½ pound of fat by dieting requires 10 days of consuming 200 fewer calories or 5 to 7 days of consuming 400 fewer calories per day than the body uses. One pound of body fat stores about 3,500 calories.
Most conservative weight loss diets involve consuming at least 1,200 to 1,400 calories a day. When rapid weight loss is needed, fewer than 1,200 calories may be consumed, but only for a short time. Such diets often have too little of essential nutrients, such as protein, iron, and calcium. Consuming fewer than 800 calories does not increase the amount of weight lost and is harder to tolerate.
To be healthy, weight loss diets should provide about the same volume of food (by including more fiber and fluids) as the normal diet. They should also be low in saturated fat and sugar and include essential nutrients, including antioxidants. The following general guidelines may help people lose weight:
Many people follow a specific diet to lose weight.
Did You Know…
High Protein-Low Carbohydrate Diets: Diets high in protein and low in simple carbohydrates have become popular as a way to lose weight. Most of these diets usually also restrict fat because each gram of fat supplies so many calories. However, some high protein-low carbohydrate diets, such as the Atkins diet, do not restrict fat.
The theory behind these diets is that slower-burning energy sources—protein and fat—provide a steady supply of energy and thus are less likely to lead to weight gain. In addition, people tend to feel full longer after eating protein than after eating carbohydrates because carbohydrates empty from the stomach quickly and are digested quickly. Carbohydrates also stimulate insulin production, which promotes fat deposition and increases appetite. However, the reason that these diets cause weight loss appears to be that people tire of the foods allowed by the diet and thus consume fewer calories.
Read full article at: Loss Weight Diet
Loss Weight DietExplains how to cut calories and reduce fat in a diet. Recommendations on achieving and maintaining a healthy weight, and selection of low-calorie, reduced fat foods and beverages. Provides free diet information, and exercise plan, with an explanation of each phase including low carb diets, diet reviews, and other health information
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