How to distinguish iodized salt: hot topics and purchasing guide on the Internet in the past 10 days
Recently, the discussion about iodized salt has become a hot topic again, especially in the fields of healthy diet and food safety. This article combines the hot topics on the Internet in the past 10 days to provide you with a detailed analysis of how to distinguish iodized salt and provide practical purchase suggestions.
1. Recent hot topics related to iodized salt

| Topic keywords | heat index | Main discussion platform |
|---|---|---|
| Prevention and treatment of iodine deficiency disease | 856,000 | Weibo, Zhihu |
| The difference between iodized salt and non-iodized salt | 723,000 | Douyin, Xiaohongshu |
| Is iodized salt needed in coastal areas? | 689,000 | Baidu Tieba, Station B |
| Selection of iodized salt for special groups | 542,000 | WeChat public account |
2. Three major methods of distinguishing iodized salt
1.Look at the packaging label: Regular iodized salt packaging must be clearly marked with the words "iodized salt" and the iodine content (usually 20-50mg/kg).
| Identity type | meaning | Applicable people |
|---|---|---|
| iodized salt | Iodine content reaches standard | general population |
| Uniodized table salt | Does not contain iodine | Patients with thyroid disease (follow doctor’s advice) |
| low sodium iodized salt | reduced sodium content | People with high blood pressure |
2.Test iodine content: It can be judged by a simple test method: dissolve a small amount of salt in water and add rice soup. If it turns blue-purple, it means it contains iodine.
3.Observe salt characteristics: High-quality iodized salt has uniform particles, white color and no agglomeration. The "Iodized Salt Identification Challenge" that has been hotly discussed on the Internet recently showed that about 30% of the testers were unable to accurately distinguish between real and fake iodized salt.
3. Suggestions for choosing iodized salt for different groups of people
| Crowd type | Recommended choice | daily intake |
|---|---|---|
| average adult | Standard iodized salt | 5-6g/day |
| pregnant woman | Fortified iodized salt | 6-7g/day |
| Thyroid disease patients | Follow your doctor’s advice | individualization |
| coastal dwellers | Appropriate amount of iodized salt | 3-4g/day |
4. Three recent misunderstandings about iodized salt
1."Iodized salt causes thyroid disease": Experts point out that moderate iodine intake will not cause disease, but iodine deficiency is the main risk.
2."Seafood can replace iodized salt": Data show that seafood alone cannot meet daily iodine needs, and an appropriate amount of iodized salt is still needed.
3."High-priced salt contains more iodine": The quality inspection report shows that the iodine content of some high-priced salt is the same as that of ordinary iodized salt, and the price difference mainly comes from the processing technology.
5. Four things to note when choosing iodized salt
1. Choose formal channels to purchase and avoid three-no products.
2. Pay attention to the production date. Iodine is volatile and should not be hoarded.
3. Choose the appropriate type according to the health status of family members.
4. Store in a cool, dry place away from direct sunlight.
Recent data released by the National Health Commission shows that the consumption rate of qualified iodized salt among Chinese residents has reached more than 90%, but it is still necessary to pay attention to scientific iodine supplementation. I hope that the detailed analysis in this article can help you correctly distinguish and choose iodized salt to protect the health of your family.
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