High-sodium diets have been linked to an increased risk of high blood pressure, stroke and other cardiovascular problems, but new research suggests a high-salt diet may also trigger more frequent atopic dermatitis flare-ups.
Research from the University of California, San Francisco (UCSF) and the University of California, Berkeley found a significant correlation between a high-sodium diet and the development of atopic dermatitis. Just one extra gram of sodium per day (about half a teaspoon of salt) was associated with an 11% higher risk of developing severe atopic dermatitis.
It has recently been shown that sodium is stored in the skin, which may help explain the link to inflammatory pathways in atopic dermatitis, said senior study author Katrina Abuabara, associate professor of epidemiology at UCSF.
Scientists hope that this new study will continue to convince people to follow sodium guidelines more carefully. "Although it has not been proven that reducing dietary salt intake improves atopic dermatitis, most Americans eat too much salt and can safely reduce their salt intake to recommended levels," Dr. Abuabara added.
Eating salty foods increases the risk of atopic dermatitis and many diseases such as cardiovascular disease, kidney disease...
1. Explaining Sodium Intake and the Risk of Atopic Dermatitis
Atopic dermatitis is a chronic, systemic inflammatory condition characterized by itchy rashes that tend to come and go, says Dr. Abuabara. Once thought to primarily affect children, data show that the condition is now more common in adults, with about 10 percent of the U.S. population suffering from atopic dermatitis.
To understand why atopic dermatitis may be linked to sodium intake, it is first necessary to understand how the body processes sodium.
Many people understand that the kidneys are responsible for controlling sodium levels in the body, but newer research has shown that much of the body's sodium is actually stored in the skin and immune system, where lymphatics work to regulate the body's electrolyte balance.
In Vietnam, an average adult consumes 8.1g of salt per day, higher than the recommendation of the World Health Organization. The results of the 2021 National Survey on Non-Communicable Disease Risk Factors (STEPS) chaired by the Ministry of Health show that the proportion of the population who always or regularly add salt, fish sauce or salty spices to food when cooking or while eating is 78.2%. There are 8.7% of people who always or regularly eat processed foods with high salt content.
Because sodium is stored in the skin, it may also influence certain autoimmune skin conditions, according to Aluabara — something the authors wanted to look at in the new study.
In this study, the authors examined 24-hour urine samples from nearly 216,000 adults aged 37 to 73 from the UK Biobank (a large-scale biomedical research database and resource). The results showed that nearly 11,000 participants, or about 5% of the participants, had been diagnosed with atopic dermatitis.
The average participant's urinary sodium excretion was about 3 grams per day, but for every 1 gram increase in sodium excretion, a person's odds of having severe or active atopic dermatitis increased. According to the study, each additional gram of sodium was associated with an 11 percent increase in atopic dermatitis diagnoses, a 16 percent increase in active atopic dermatitis flare-ups, and an 11 percent increase in atopic dermatitis severity.
Should increase fruits and vegetables in the diet.
2. What should you eat to reduce itching and dry skin caused by atopic dermatitis?
While the study found a correlation between sodium intake and atopic dermatitis, Dr. Abuabara said "that doesn't necessarily mean that sodium management is a way to actually control atopic dermatitis symptoms," and the next step will be to determine whether there is a more significant causal link between sodium and atopic dermatitis flare-ups.
Still, there are many evidence-based reasons to watch your salt intake, such as preventing or controlling high blood pressure, heart disease, kidney disease and stroke.
The U.S. Dietary Guidelines recommend keeping salt (or sodium) intake below 2,300 milligrams (mg) per day, and many Americans eat nearly 50% more than this on a regular basis.
Some easy ways to start controlling sodium intake are to focus on whole foods like fresh fruits, vegetables, whole grains, nuts, legumes, lean meats and seafood, while staying away from overly processed foods and high-sodium culprits like salty snacks, condiments and deli meats.
While diet alone cannot cure atopic dermatitis, ensuring we are providing our bodies with nutrients to support skin health and reduce inflammation (such as protein, omega-3 fatty acids and vitamins A and C) and controlling our body weight can help in managing this chronic condition, say nutritionists.
Source: https://giadinh.suckhoedoisong.vn/vi-sao-an-man-gay-ngua-va-kho-da-tang-nguy-co-viem-da-di-ung-172240622204500879.htm
Comment (0)