Essential Vitamin and Mineral Panel

Vitamin D, B12, folate, ferritin, and zinc share overlapping symptoms when deficient, most notably fatigue, poor immunity, and cognitive fog. Testing them together removes the guesswork and identifies whether one specific deficiency is driving your symptoms or whether multiple shortfalls are compounding each other. It also gives you a starting point for supplementation without the risk of blindly taking products that may not be needed. From a cost and convenience perspective, a panel is significantly more efficient than ordering five individual tests separately.

Yes, and it is particularly recommended. Plant-based diets eliminate or drastically reduce the main dietary sources of B12 (meat, fish, dairy, eggs) and can also be lower in zinc (more bioavailable from animal protein) and iron. B12 deficiency in long-term vegans can take years to manifest as symptoms because the liver holds a substantial reserve, but once stores deplete, neurological effects can be rapid. Regular monitoring every six to twelve months is sensible for anyone following a fully plant-based diet.

Low ferritin without anaemia is sometimes called pre-latent or latent iron deficiency. It means your iron stores are being drawn down but not yet to the point where red blood cell production is impaired. Many people with low-ferritin/normal-haemoglobin still experience significant fatigue, hair loss, and reduced exercise tolerance. Addressing iron stores at this stage through dietary changes or supplementation is considerably easier than managing full iron-deficiency anaemia. Your physician commentary will advise on next steps.

It depends on your goal. If you want your true baseline, stop all relevant supplements for at least four weeks. If you want to know whether your current supplementation is working, continue as normal and collect your sample before your daily dose. For zinc, even a single dose of a supplement can transiently elevate serum levels, so ideally collect after an overnight fast and before supplementing on the day of collection.

It varies by nutrient and the severity of the deficiency. Vitamin D levels typically rise within four to eight weeks of supplementation at standard doses. Ferritin recovery after iron supplementation can take three to six months to fully replenish stores. B12 and folate levels in blood usually normalise within four to eight weeks of supplementation, although neurological recovery from B12 deficiency may take considerably longer. Retesting after three to four months is a reasonable way to assess progress.

Fasting is recommended but not strictly mandatory. Zinc and folate can be mildly elevated within a few hours of a meal, so an overnight fast (8 hours, water permitted) reduces variability and makes your result more comparable to reference ranges that are typically established in fasting populations. If fasting is not practical, collect at least 4 hours after your last meal and note this when reviewing results.

Iron deficiency (reflected by low ferritin) is one of the most common modifiable causes of non-scarring hair loss in women, and zinc deficiency can also contribute. Biotin deficiency is sometimes cited but is rare without specific risk factors. This panel covers iron and zinc; if results are normal and hair thinning persists, a thyroid or hormone panel may provide additional insight.