🔬 Test Before You Supplement

Checks for vitamin D deficiency — one of the most common worldwide. Low levels link to fatigue, depression, weak bones, and poor immunity.

✓ Recommended for: everyone, especially those indoors a lot

→ If low: consider Vitamin D3 + K2

Deficiency causes fatigue, brain fog, nerve damage, and mood changes. Very common in vegetarians, vegans, and adults over 50.

✓ Recommended for: vegans, vegetarians, adults 50+

→ If low: methylcobalamin B12 supplement

Ferritin (stored iron) is a better indicator than serum iron alone. Low ferritin causes hair loss and exhaustion even when regular iron looks normal.

✓ Recommended for: women 18–50, anyone with unexplained fatigue

→ If low: iron bisglycinate (gentler form)

Standard serum magnesium misses most deficiencies. The RBC (red blood cell) test is far more accurate. Low magnesium is extremely common.

✓ Recommended for: anyone with poor sleep, muscle cramps, or stress

→ If low: magnesium glycinate or malate

Measures EPA and DHA levels in red blood cells. Most people in Western countries score below the optimal range of 8%. Linked to heart and brain health.

✓ Recommended for: adults not eating fatty fish 2+ times/week

→ If low: high-quality fish oil or algae omega-3

Thyroid dysfunction affects energy, weight, hair loss, and mood. Often goes undetected for years. A full panel catches subclinical issues a basic TSH might miss.

✓ Recommended for: women 30+, anyone with unexplained fatigue or weight changes

→ Supplement zinc, selenium, iodine if deficient

A 3-month average of blood sugar. Detects pre-diabetes early — a condition affecting 1 in 3 adults who don't know they have it. Fasting not required.

✓ Recommended for: adults 35+, anyone overweight or with family history

→ Consider: berberine, magnesium, chromium

Measures LDL, HDL, triglycerides, and total cholesterol. Triglycerides respond strongly to diet and can be improved with omega-3s.

✓ Recommended for: adults 30+, especially with family history of heart disease

→ If triglycerides high: omega-3, berberine, CoQ10

Zinc and copper must stay in balance. Excess zinc supplementation depletes copper, and vice versa. Good baseline before starting either.

✓ Recommended for: anyone considering zinc or copper supplements

→ Supplement based on result only

Morning cortisol reveals adrenal function and stress hormone patterns. Chronic stress often shows up here before symptoms become obvious.

✓ Recommended for: high-stress adults, those with burnout or fatigue

→ Adaptogenic herbs: ashwagandha, rhodiola, holy basil