Start with whole foods for a strong foundation, using supplements to fill gaps. Cover basics, then add support as needed.
Vitamin C
Vitamin C supports antioxidant defenses and helps support normal immune cell function. It is also involved in maintaining healthy tissues, which matters because your body's barriers are part of your first line of defense.
Food-first sources include citrus, kiwi, berries, peppers, broccoli, and leafy greens. If your intake is low or your routine is inconsistent, a supplement can be a practical way to fill the gap.
Vitamin D
Vitamin D supports immune regulation and healthy barrier function. Many adults have low or suboptimal vitamin D status, especially in winter months, with limited sun exposure, or when dietary intake is low.
A daily supplement tailored to your needs is practical; for a precise plan, consider lab guidance with a clinician.
Zinc, protein, and key cofactors
Zinc supports normal immune cell development and communication. Protein supplies the raw materials your body uses to build immune components. Healthy fats support cell membranes and signaling.
Worth remembering:
- Nutrients like selenium, copper, iron, and folate matter, but they should be supplemented thoughtfully, not randomly.
- More is not always better. High dosing without a reason can create imbalances.
A practical baseline: a varied whole-food diet plus a daily multivitamin can be a sensible way to cover common nutritional gaps.