Lao Liu has been retired for several years, and the benefits arranged by the unit have annual physical examinations.
He was found to have high blood lipids during this year's physical examination, and the doctor prescribed him medication to take and told him to eat less high-fat foods when he went back.
After going back, Lao Liu searched for various foods on the Internet that high blood lipids can not be eaten, and an article said that sweet potatoes are blood lipid promoters, and patients with high blood lipids cannot eat sweet potatoes.
This can make Lao Liu worried, his favorite coarse grain is sweet potatoes, can he really not eat it again in the future?
1. Eating sweet potatoes regularly, does it increase blood lipids or lower blood lipids?
Sweet potato is a very nutritious food, 100g of sweet potato has an average of 83.4g of water, 0.7g of protein, 0.2g of fat, 2.2g of dietary fiber, 15.3g of carbohydrates, 125μg of retinol, as well as folic acid, potassium, sodium, magnesium, phosphorus and other components.
Sweet potatoes contain a high content of dietary fiber, which can promote gastrointestinal peristalsis when it enters the body, which is of positive significance for the prevention and treatment of constipation.
In addition, bioactive substances such as mucus protein and flavonoids in sweet potatoes can play a certain role in protecting the blood vessel wall and improve the body's immunity.
So does eating sweet potatoes lower or raise blood lipids?
In recent years, studies have found that sweet potatoes can prevent lipid accumulation in the endocrine system, aortic atherosclerosis, reduce body fat, prevent body obesity, and have certain benefits for lowering blood lipids.
In addition, the potassium and carotene in sweet potatoes can also play a certain protective role in the heart and blood pressure, and can prevent stroke.
Zheng Jin, deputy chief physician of the Department of Geriatric Cardiovascular Medicine of the Second Medical Center of the General Hospital of the People's Liberation Army of Chinese People's Liberation Army, said that the foods that patients with high blood lipids really need to avoid are actually these.
1. Alcohol
Alcohol can bring adverse irritation to blood vessels, and beer is a high-calorie drink, which is undoubtedly worse for people with high blood lipids.
2. High-cholesterol foods
For example, animal offal, fatty meat, crab roe and other foods are very high in cholesterol. Long-term intake will lead to an increase in blood lipids in the body, and will bring greater pressure on the cardiovascular system.
3. Sweets
Sweets are high in sugar, which can be easily converted into fat after entering the body, which will pose a great threat to the health of blood vessels. Whether it is a healthy person or a person with high blood lipids, it is not recommended to eat a lot of sweets.
4. Salted duck eggs
Salted duck eggs are high in salt, fat and cholesterol, and are not recommended for people with high blood lipids.
2. Is it true that sweet potatoes can destroy 98% of cancer cells?
Japan's National Institute for Cancer Prevention has published a study that says sweet potatoes have the strongest anti-cancer effect among 20 vegetables. Among them, the cancer inhibition rate of cooked sweet potatoes can reach 98.7%, and raw sweet potatoes can also reach 94.4%, but is this conclusion really credible?
The answer is no, for two main reasons.
First, the experiment was carried out on animals and in vitro cells, and the results obtained could not be directly inferred to the human body, and the structure of the human body could be much more complex than that of animals and cells;
The second is that the sweet potato extract used in the experiment is completely different from eating sweet potatoes directly. If you want to achieve an effective dose by eating sweet potatoes, you need to ingest dozens of kilograms or more at a time, which is obviously impossible without considering nutrient depletion.
3. There are three types of people who should not eat sweet potatoes
Zheng Xiaoli, Department of Metabolic Diseases, Shanxi Provincial Hospital of Traditional Chinese Medicine, reminded that although sweet potatoes are good, they are not suitable for everyone, and these types of people are better not to eat sweet potatoes.
Allergies: Some people who are allergic to plant proteins are not recommended to consume sweet potatoes, otherwise they may experience symptoms such as itchy skin, difficulty breathing, and swelling of the throat, and even anaphylactic shock, which is life-threatening.
Diabetics: Sweet potatoes are a high GI food, so diabetics should pay more attention when eating, it is best to match them with low GI foods such as vegetables and beans, and at the same time reduce the intake of staple foods to avoid blood sugar spikes after meals.
Patients with gastrointestinal diseases: Sweet potatoes have a high fiber content, and for people with poor gastrointestinal function, they are prone to gastrointestinal discomfort after eating.
In addition, there are several things to pay attention to when eating sweet potatoes.
1. It is better to eat at lunchtime: sweet potatoes need 4~5 hours to digest and absorb after entering the body, and more gas will be produced in the process, so it is more suitable to eat them at noon. It can avoid overlapping with sleep time and affecting normal sleep quality.
2. Not to be eaten with sweets: Sweet potatoes are high in sugar, and eating desserts at the same time as sweet potatoes will significantly increase the risk of gastroesophageal reflux and make the body fat.
3. Avoid eating with persimmons: Pei Ruirui, an orthopedic surgeon at Shanxi Provincial Hospital of Traditional Chinese Medicine, reminded that the interval between sweet potatoes and persimmons should be at least 5 hours. Because sweet potatoes will increase gastric acid secretion after entering the body, they are easy to form insoluble hard lumps after reacting with tannin and pectin in persimmons, which is not good for gastrointestinal health.
4. Be sure to steam and cook thoroughly before eating: the starch granules in sweet potatoes are difficult to digest without being destroyed by high temperature, and it is easy to cause indigestion after eating.
Sweet potatoes are a very common food, whether it is three highs or ordinary people in good health, the amount of sweet potatoes needs to be controlled every day, excessive intake can easily lead to blood sugar rise, body fat.
Resources:
[1] "Sweet potatoes and yams, how to eat healthier?", Human Health Health.2020-11-01
[2] "Japanese Study Finds: Sweet Potato Can Inhibit 98% of Cancer Cells?Is It Credible?The Real Benefits of Eating Sweet Potatoes Are ......".I am a big doctor official Wei.2022-11-08
[3] "Although sweet potatoes are good, these three types of people should eat less", Health News.2023-11-21
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