How to Prepare for the Lipoprotein(a) Test: Rules for Getting Tested
How to correctly take the lipoprotein(a) test: whether fasting is needed, what distorts the result, the mg/dL and nmol/L units, risk thresholds according to the EAS consensus.
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How to Prepare for the Homocysteine Test: Rules for Getting Tested
Rules for taking the homocysteine test: fasting, cooling and centrifuging the sample, the effect of protein food, coffee, training and medications on the result.
Vitamin D (25-OH): What the Test Shows and Why It Matters for an Athlete
The vitamin D (25-OH) test: what it shows, how it differs from 1,25(OH)₂D, how vitamin D affects an athlete's bones, muscles and immunity, and how to read the thresholds.
Vitamin D (25-OH) Above or Below Normal: Causes in Athletes and What to Do
Why vitamin D (25-OH) is low or high in athletes: season, gyms, body mass, absorption, excess supplements; the IOM thresholds and an action plan with a doctor.
Vitamin B12: What the Test Shows and Why It Matters for an Athlete
The vitamin B12 test: what serum cobalamin, holotranscobalamin, MMA and homocysteine show, reference points of the norm and which athletes have a higher risk of deficiency.
Vitamin B12 Above or Below Normal: Causes in Athletes and What to Do
Why vitamin B12 is low or high in athletes: veganism, PPIs, metformin, nitrous oxide, supplements, liver; clarifying tests and strategy with a doctor.
Folate: What the Test Shows and Why It Matters for an Athlete
The folate test: the difference between serum and red blood cell folate, the WHO deficiency thresholds, the link with anemia, B12 and homocysteine in athletes.
Folate Above or Below Normal: Causes in Athletes and What to Do
Why folate is low or high in athletes: diet, alcohol, medications, supplements, hemolysis and the "folate trap" in B12 deficiency; a plan of action with a doctor.
Magnesium in the Blood: What the Test Shows and Why It Matters for an Athlete
The magnesium blood test: what serum magnesium shows, why it does not reflect tissue reserves, the reference limits, the effect of hemolysis and when an athlete should take it.
Magnesium in the Blood Above or Below Normal: Causes in Athletes and What to Do
Why magnesium in the blood is low or high in athletes: diet, diarrhea, PPIs, diuretics, sweat, kidney function, supplements and hemolysis; how to act with a doctor.
How to Prepare for the Lipoprotein(a) Test: Rules for Getting Tested
How to correctly take the lipoprotein(a) test: whether fasting is needed, what distorts the result, the mg/dL and nmol/L units, risk thresholds according to the EAS consensus.
How to Prepare for the Homocysteine Test: Rules for Getting Tested
Rules for taking the homocysteine test: fasting, cooling and centrifuging the sample, the effect of protein food, coffee, training and medications on the result.