Health Corner

Facing the ongoing challenges of the pandemic, hidden transmission chains of new virus variants have recently been spreading in the community, once again drawing public attention to COVID-19 vaccination. Each person has a different physical constitution and may react differently to the vaccine. These reactions also depend on one’s diet and lifestyle.

Therefore, maintaining good health and proper nutrition before and after vaccination is important to support the immune system and help the vaccine work effectively.

1. What should I do to prepare for vaccination? Is it helpful to take fever or pain relief medicine after the shot?
   The purpose of vaccination is to stimulate the immune system to produce antibodies and immune responses, which may cause local or systemic inflammation. Instead of relying on pain or fever medicine afterward, it is more effective to take key nutrients in advance to reduce inflammation and discomfort. The following nutritional supplements may help ease inflammation before and after vaccination:

• Vitamin C – Vitamin C plays a vital role in the immune system. Common post-vaccination symptoms such as fever or headache are related to inflammation. Taking Vitamin C early can help reduce inflammation and discomfort. Since the human body cannot produce Vitamin C on its own, and cooking fruits and vegetables may destroy it while increasing sugar intake, Vitamin C supplements can help enhance antioxidant capacity and strengthen immunity.

• Omega-3 fatty acids – Omega-3s are essential polyunsaturated fatty acids that help maintain normal body functions and have broad anti-inflammatory benefits. They strengthen the immune system and help reduce potential vaccine-related side effects. The recommended daily intake for adults is 600–1000 mg, but dietary intake is usually low since these fatty acids are mainly found in deep-sea fish and cannot be produced by the body. People who consume little fish or are concerned about heavy metal contamination can conveniently obtain Omega-3s through high-concentration fish oil supplements.

• Prebiotics – Gut health plays a key role in maximizing vaccine effectiveness. About 70% of immune cells are concentrated in the gut, the body’s frontline defense. Prebiotics, especially when combined with probiotics, can improve gut flora balance, promote bowel movement, and enhance immune resistance, which is particularly beneficial for people with weaker immune systems.

2. Why do I feel tired after vaccination? How can I relieve this?
Feeling fatigued for a few days after vaccination is normal, as the body’s immune system becomes active to build protection. It is crucial to maintain a healthy and regular lifestyle during the two weeks following vaccination to help your body recover. Avoid smoking, drinking, and staying up late. Drink plenty of water (at least 2,000 ml per day) to support circulation and speed up metabolism, which helps ease immune reactions.

In terms of diet, focus on high-fiber, low-fat, and low-sugar foods. Limit fried and processed foods such as cakes, chips, and luncheon meat, which can trigger inflammation and slow recovery. Choose high-quality protein instead, including “white meats” and plant-based proteins such as fish, chicken, eggs, and tofu. These are lower in fat, reduce body burden, and help support immune function, white blood cell production, and antibody formation.