Total energy intake > energy expended = obesity
Total energy intake > Energy consumed = Obesity
Total energy intake < energy consumed = lethargy
Total energy intake = Energy consumed = Normal body weight
The above is only an estimate of quantity, but normal quantity does not mean good quality.
In a woman in her 60s with weakness in both lower limbs and poor digestion, this woman weighed 51.5 kg, was 160 cm tall, and had a BMI of 20.1, compared with 18.5 to 23.9 for a normal person, but when she was tested with a body composition analyzer, she was found to have excess body fat and low muscle mass.
This indicated that her total energy intake and energy expenditure were fairly balanced, but the ratio of her intake of the three major energy-producing nutrients was not correct.
She was given a detailed dietary survey and found that about 80% of her daily energy intake came from carbohydrates, with protein and fat together accounting for only about 20% of her total energy. She did not eat meat, eggs, milk, fried food, fried vegetables, and boiled water, and her daily energy was basically provided by rice and noodles in the three main meals.
Now the cause of the disease was found.
Lack of protein, so muscle weakness, poor digestion, and poor sleep.
Lack of essential fatty acids, so dry skin, poor eyesight, memory loss.
I explained the reasons carefully to her and told her that she had to eat meat, eggs, milk, and fish, and reduce her carbohydrate intake. She usually eats too much grain, which is converted into fat in her body, so despite her normal weight, she does not have a large percentage of the essential structural components of the body, but a large percentage of fat.
The lady listened to me and nodded with a smile while taking out a paper and pen to record, but she listened to what came after and forgot the previous explanation. Sometimes a question had to be covered several times. Her comprehension and memory skills were clearly problematic for the same reason as her indigestion and weakness of her limbs, which was also due to a chronic deficiency of protein and essential fatty acids and the resulting damage to her nerve cells.
Therefore, we must increase meat, eggs, milk, and fish in our diet, not eat so many carbohydrates, and pay attention to giving the brain adequate nutrition in order to effectively treat indigestion and prevent Alzheimer’s disease.