Why is lysine banned by the country

The country has not completely banned lysine, but there are strict restrictions on its use in food and medicine. Lysine is one of the essential amino acids for the human body, mainly used in nutritional supplements and feed additives. The main limiting factors include the risk of overdose, contraindications for specific populations, and drug interactions.

1. Risk of Excess

Although lysine is an essential nutrient, long-term excessive intake may cause gastrointestinal discomfort and increased metabolic burden on the liver and kidneys. Excessive addition of partially fortified foods may lead to developmental abnormalities in children, especially when the ratio of arginine is imbalanced, which may affect immune function.

II. Taboos for special populations

Individuals with liver and kidney dysfunction have decreased ability to metabolize lysine, which can easily lead to elevated blood ammonia levels. Patients with hereditary amino acid metabolism disorders, such as those with high lysine levels, must strictly avoid use, otherwise it may induce neurological damage.

III. Drug Interactions

Lysine may enhance the toxicity of certain antiviral drugs, and its combination with aminoglycoside antibiotics increases the risk of nephrotoxicity. Co administration of calcium containing preparations with lysine may affect mineral absorption balance.

IV. Food Additive Specification

China has included lysine in the standard for the use of food nutrition fortifiers, strictly limiting its addition amount in grain products and infant food. Unauthorized addition of food categories is considered a violation.

V. Pharmaceutical Management Requirements

Pharmaceutical grade lysine must be purchased with a prescription, and its injection indications are limited to severe malnutrition or postoperative recovery. Self abuse may lead to electrolyte imbalance, especially intravenous injection, which requires strict monitoring of blood ammonia levels.

It is safer for the general population to consume lysine through natural foods such as meat and dairy products in their daily diet, and there is no need for additional supplementation. In special circumstances, the use of lysine preparations should follow medical advice and avoid consuming large amounts of foods rich in arginine. Parents should not take amino acid supplements for their children without authorization. Infant formula has been fortified with essential amino acids according to standards. Patients with liver disease, pregnant women and other high-risk groups need to undergo metabolic assessment before use. If discomfort symptoms such as nausea and dizziness occur, they should immediately stop using and seek medical attention.