Dr. Thomas Klein is a board-certified clinical hematologist serving as Chief Medical Officer at Kantesti AI. With over 15 years of experience in laboratory medicine and a strong interest in AI-supported interpretation of blood test results, he works to connect new technology with everyday clinical practice. His areas of interest include biomarker analysis, clinical decision support research and population-specific reference range optimization. As CMO, he contributes clinical input to the platform's internal benchmarking and provides clinical oversight for the medical quality of Kantesti's educational reports.

Lab Result Tracker: Context to Save After Each Draw

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Lab Tracking Lab Interpretation 2026 Update Patient-Friendly Most people save the PDF and lose the context. That missing context is often the difference between a real trend and a misleading lab swing. 📖 ~11 minutes 📅 June 20, 2026 📝 Published: June 20, 2026 🩺 Medically Reviewed: June 20, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a board-certified clinical hematologist and internist with […]

Anti-Aging Foods: Lab Markers That Shift First

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Nutrition Labs Lab Interpretation 2026 Update Patient-Friendly The useful question is not whether a food makes you younger. It is whether your triglycerides, glucose, inflammation markers and nutrient status move in the right direction. 📖 ~11 minutes 📅 June 20, 2026 📝 Published: June 20, 2026 🩺 Medically Reviewed: June 20, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a board-certified clinical hematologist and […]

Foods for Gut Health That Can Shift Stool Tests

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Gut Health Stool Testing 2026 Update Patient-Friendly Soluble fiber, resistant starch, fermented foods and polyphenol-rich plants can change stool patterns and some stool reports. They do not create a clean slate for the gut, and that distinction matters. 📖 ~11 minutes 📅 June 19, 2026 📝 Published: June 19, 2026 🩺 Medically Reviewed: June 19, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a […]

Foods High in Vitamin D: Do They Raise 25-OH?

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Vitamin D Lab Interpretation 2026 Update Patient-Friendly Food can move a low 25-OH vitamin D result, but only when the dose is real, repeated, and absorbed. The lab retest tells you whether your salmon, fortified milk, mushrooms, or supplements actually changed status. 📖 ~11 minutes 📅 June 19, 2026 📝 Published: June 19, 2026 🩺 Medically Reviewed: June 19, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. […]

Supplements for Pregnancy: Lab-Guided Safe Doses

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Pregnancy Nutrition Lab Interpretation 2026 Update Patient-Friendly A prenatal vitamin is a starting point, not a personalized prescription. The safest plan uses diet, trimester, symptoms, and lab patterns to decide what to add, lower, or avoid. 📖 ~11 minutes 📅 June 19, 2026 📝 Published: June 19, 2026 🩺 Medically Reviewed: June 19, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a board-certified clinical […]

Probiotics for Gut Health: Strains, Uses and Side Effects

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Gut Health Supplement Safety 2026 Update Patient-Friendly A practical physician-led guide to choosing probiotic strains by symptom goal, timing them after antibiotics, and knowing when gut symptoms need labs rather than another supplement. 📖 ~12 minutes 📅 June 19, 2026 📝 Published: June 19, 2026 🩺 Medically Reviewed: June 19, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a board-certified clinical hematologist and internist […]

Methylated B12 vs Cyanocobalamin: Which Works Best?

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Vitamin B12 Lab Interpretation 2026 Update Patient-Friendly For most adults, cyanocobalamin is the best first-choice B12 supplement because it is stable, inexpensive, and reliably absorbed at high oral doses. Methylated B12 is useful in selected situations, but MTHFR variants alone rarely make it mandatory. 📖 ~11 minutes 📅 June 19, 2026 📝 Published: June 19, 2026 🩺 Medically Reviewed: June 19, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti […]

Omega-3 Supplement Benefits: Who Needs EPA and DHA?

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Omega-3 Guide Lab Interpretation 2026 Update Patient-Friendly A patient-friendly guide to when fish oil or algal omega-3 may help, when food is enough, and which blood markers can show whether EPA and DHA are actually reaching your cells. 📖 ~11 minutes 📅 June 18, 2026 📝 Published: June 18, 2026 🩺 Medically Reviewed: June 18, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a […]

Supplements for Thyroid Health: Iodine, Selenium Safety

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Thyroid Health Lab Interpretation 2026 Update Patient-Friendly A patient-first guide to iodine, selenium, thyroid labs, medication timing, and the supplement patterns that deserve medical review before you start. 📖 ~11 minutes 📅 June 18, 2026 📝 Published: June 18, 2026 🩺 Medically Reviewed: June 18, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a board-certified clinical hematologist and internist with over 15 years of […]

What Blood Tests to Check Immune System: CD4/CD8

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Immune Testing Lab Interpretation 2026 Update Patient-Friendly A standard CBC tells you how many lymphocytes you have. A lymphocyte subset panel tells you which immune cell teams are actually expanded, depleted, or out of proportion. 📖 ~11 minutes 📅 June 18, 2026 📝 Published: June 18, 2026 🩺 Medically Reviewed: June 18, 2026 ✅ Evidence-Based This guide was written under the leadership of Dr. Thomas Klein, MD in collaboration with the Kantesti AI Medical Advisory Board, including contributions from Prof. Dr. Hans Weber and medical review by Dr. Sarah Mitchell, MD, PhD. Lead Author Thomas Klein, MD Chief Medical Officer, Kantesti AI Dr. Thomas Klein is a board-certified clinical hematologist […]