Preventive check from 30 — what actually makes sense

Dr. Charalampos Romanos · 21 July 2025 · 5 min read

Prevention doesn't start at 50. Many of the most common health problems — thyroid dysfunction, iron deficiency, insulin resistance, vitamin D deficiency — can be detected and treated in your 30s, before they cause symptoms.

What makes sense in a check-up from 30

Blood count, ferritin, thyroid (TSH), vitamin D, HbA1c (long-term blood sugar), lipid panel, and liver/kidney values form a solid baseline. With family history, we add targeted tests — for example lipoprotein(a) if there's a family history of heart attack.

The difference from a check-up at 40 or 50

At 30, it's less about cancer screening and more about establishing metabolic baseline values. We create a reference against which future changes can be measured. A lipid panel at 30 is more valuable than most people think — especially with family history. Details on the check-up from 40 here.

Women: what's additionally important

For women in their 30s, I pay particular attention to ferritin (menstruation as a cause), thyroid (Hashimoto's often appears at this age), and vitamin D. For those planning pregnancy, we add folate status and further parameters.

How often to repeat?

Without risk factors, I recommend a check-up every 3 years from 30. More often with abnormal values or risk factors. More on our preventive medicine page.