(2) Inducing gallstones: Dieters' low-calorie and low-fat diet is easy to cause gallstones. The reason is that the gallbladder can't deliver enough bile to the small intestine when the hunger is caused by the sudden decrease of fat and cholesterol intake. The accumulation of bile and the existence of saturated bile salts will promote the formation of stones. One of the ways to prevent the formation of stones is to make the gallbladder fully contract and empty at least 1 time every day. Dieters should consume at least 5020 kilojoules of calories every day, and they must have a meal containing 5 ~ 10g of fat every day to stimulate the gallbladder to empty completely and avoid the formation of gallstones.
(3) Damage to brain cells: A new research topic shows that dieting and losing weight is very harmful to brain memory function cells, which will lead to the memory decline of these dieters, and even simple calculations can't cope with them in the future. Physiologists believe that the result of dieting is a lack of nutrition in the body, which seriously damages brain cells and directly leads to a significant decline in memory and intelligence. The researchers studied the effects of dieting on the brain health of 55 women. The women who participated in the experiment were regularly evaluated in terms of weight, body shape and behavioral response.
The survey results show that all 55 dieting women have problems such as memory loss and slow response. Further research found that the longer the dieting time, the more weight loss, and the worse the performance in number recognition, behavior and intelligence.
(4) Osteoporosis: The American Institute on Aging recently conducted a survey on 3683 women over 67, and plotted their weight changes at the age of 50 and the incidence of hip fractures in the next eight years. The survey found that if healthy women lose more than 10% at the age of 50, the probability of hip fracture at the age of 65 is nearly 1 times higher than that of women with stable weight. Why are women who are thin or lose too much weight prone to hip fractures? This is because menopausal women, especially postmenopausal women, due to the cessation of ovarian function, estrogen secretion is also reduced accordingly, and bone calcium is lost in large quantities, which is easy to cause osteoporosis and fractures. Adipose tissue except ovary is an important place to produce estrogen in the body. Fat cells can convert raw materials provided by adrenal cortex into estrogen through processing, so women who are thin or lose too much weight often have low estrogen levels, which are more likely to cause osteoporosis and fractures.
(5) Hair loss: Hair loss caused by weight loss is increasing day by day, and 20% ~ 30% are young women aged 20 ~ 30. Because the main components of hair are trace elements such as protein, zinc, iron and copper. People who are vegetarian and lose weight only eat vegetables, fruits and flour, and the intake of protein and trace elements is insufficient, which leads to hair loss due to severe malnutrition.