Eating noodles and rice in the elderly has different effects on body weight, which is affected by factors such as caloric differences, digestion and absorption speed, glycemic index, nutrient content, and cooking methods.

1. Calorie differences: There is a difference in calories between noodles and rice. In general, the calories per 109 grams of cooked rice are about 0 kcal, while the calories of noodles are about 0 kcal per 0 grams of cooked noodles. If the elderly consume the same weight of noodles and rice, the rice provides slightly higher calories, and if it is consumed in large quantities for a long time, rice may be more likely to lead to weight gain.

2. Digestion and absorption speed: Noodles are kneaded and other processes in the production process, and their structure is relatively tight, and the digestion and absorption rate in the gastrointestinal tract is relatively slow. The rice particles are relatively loose and digested and absorbed relatively quickly. Faster digestion and absorption means that blood sugar rises faster, and the body quickly converts excess sugar into fat for storage, which can affect weight.

3. Glycemic index: The glycemic index reflects the ability of a food to cause a rise in blood sugar. Usually, the glycemic index of rice is higher than that of noodles, and after eating rice, blood sugar will rise rapidly, stimulating a large amount of insulin secretion, promoting a rapid drop in blood sugar, making people prone to hunger, and then increasing the amount of food eaten, which is not conducive to weight control. Whereas, noodles raise blood sugar relatively gently and have a relatively small effect on body weight.

4. Nutrients: Rice is mainly carbohydrate-based, and other nutrients are relatively simple. In addition to carbohydrates, noodles also contain a certain amount of protein, B vitamins, etc. Protein can increase feelings of fullness and reduce the intake of other foods, which can help with weight control. At the same time, B vitamins participate in the body's metabolism, which helps to maintain the normal metabolic function of the body, and indirectly affects body weight.

5. Cooking style: Rice is generally steamed and cooked, which is relatively simple and healthy. Noodles are cooked in a variety of ways, and if they are noodle soups, more oil, seasonings, etc. may be added, increasing the extra calorie intake, resulting in weight gain. In the case of cold noodles, adding too much sauce will also increase the calories significantly.

In summary, the effect of eating noodles and rice on body weight in the elderly is affected by a combination of factors. It cannot be simply said that eating noodles or rice will necessarily lead to weight gain or loss. In the daily diet, the elderly should choose food reasonably according to their own physical condition, exercise amount, etc., and pay attention to controlling food intake and cooking methods to maintain a healthy weight.

This article is only for health science popularization and does not constitute medication or medical guidelines, it is recommended to seek medical attention in time if you have health problems.