Please recommend health functional foods that help with immune system decline and fatigue recovery during seasonal changes.

Hello. I recently requested a consultation because I feel more fatigued and less energetic than usual due to increased workload and large daily temperature differences. I feel it is difficult to get enough nutrients through diet alone, so I am seeking a systematic approach. Health functional foods I'm trying to eat more. But with so many products on the market and so many different ingredients, it's hard to choose just what I need.

My current condition is that when I wake up in the morning, my body feels heavy and my concentration drops sharply in the afternoon. In this case, what kind of supplements other than vitamin B complex or probiotics can help replenish my energy? Health functional foods What is the most effective way to consume it? Rather than indiscriminately eating multiple eggs at once, I should consider my health and lifestyle to find the optimal synergy. Health functional foods I would like to receive suggestions for combinations.

Also, since I have a sensitive stomach, I'm worried that I might experience heartburn or discomfort when taking certain nutritional supplements. I want to carefully check whether taking them before or after meals will increase absorption and reduce side effects, and whether they conflict with other medications I'm currently taking. I can take them with confidence through a thorough diagnosis by a specialist. Health functional foods I would appreciate your guidance. I look forward to your reply.