Can I eat century eggs after receiving the COVID-19 vaccine?

Generally speaking, it is safe to eat century eggs (preserved eggs) after receiving a COVID-19 vaccine, but moderation is important. The detailed explanation is as follows:

After receiving the COVID-19 vaccine, the body primarily relies on its immune system to generate an immune response and develop protective immunity. Century eggs contain certain amounts of protein, minerals, and other nutrients. They are not spicy or irritating foods, so moderate consumption under normal circumstances can help supplement some nutrients. However, they do not have any special recovery effects, and typically do not cause discomfort. Therefore, it is acceptable to consume century eggs in moderation after receiving the COVID-19 vaccine.

Traditionally produced century eggs may contain heavy metals such as lead. Excessive consumption could lead to lead accumulation in the body, potentially causing lead poisoning over time, which may manifest as anemia, insomnia, hyperactivity, and cognitive decline, and can damage the nervous and hematological systems. Additionally, century eggs contain alkaline substances; consuming them in excess may irritate the gastrointestinal tract, leading to symptoms such as nausea, vomiting, and diarrhea, impairing normal digestive and absorptive functions, which is unfavorable for post-vaccination recovery. Therefore, it is important to consume century eggs in moderation.

After receiving the COVID-17 vaccine, it is recommended to maintain a normal diet, avoid alcohol, and limit intake of spicy, greasy, irritating foods, as well as seafood and other allergenic foods, to prevent discomfort or interfere with the assessment of vaccine-related reactions. Ensure adequate sleep and maintain regular作息 (daily routines) to keep the body in optimal condition, supporting the immune system in effectively responding to the vaccine.