Supplements
Electrolyte powders, probiotics, and dietary supplements
Best Probiotics for Kids of 2026
Dr. David Taylor reviews the best probiotics for kids on Amazon. Compare pediatric strains, CFU counts, age ranges, and formats for constipation, diarrhea, and immune support.
11 products reviewed · Updated Aug 13, 2026
Iron Supplements and Constipation: How to Take Iron Without It
Dr. David Taylor explains why iron supplements cause constipation and gives a clinical protocol to prevent it — alternate-day dosing, which iron forms are gentlest, timing rules, and what to do if you are already backed up.
0 products reviewed · Updated Aug 12, 2026
9 Best Sea Moss Supplements of 2026
Dr. David Taylor, MD compares the 9 best sea moss supplements — capsules, gel, gummies, and powder — by sourcing, dose, and iodine and thyroid safety.
9 products reviewed · Updated Aug 5, 2026
Essential Vitamins and Supplements for Seniors
An MD's evidence-based guide to the vitamins and supplements that actually matter after 60 — B12, vitamin D, calcium, magnesium, omega-3, protein, and more — with senior RDAs, drug interactions, and what you can skip.
0 products reviewed · Updated Jul 22, 2026
10 Best Vitamin K2 Supplements of 2026
Dr. David Taylor reviews the best vitamin K2 supplements of 2026. Compare MK-7 vs MK-4, all-trans MenaQ7 purity, D3+K2 combos, and the clinical bone dose for osteoporosis.
10 products reviewed · Updated Jul 16, 2026
9 Best Protein Powders for Seniors of 2026
Dr. David Taylor reviews the best protein powders for seniors in 2026 — physician-vetted picks for muscle preservation, easy digestion, diabetes, plant-based diets, and appetite loss, with dose and safety guidance.
9 products reviewed · Updated Aug 14, 2026
Supplements for Joint Health: What the Research Says
An MD's evidence-based review of glucosamine, chondroitin, turmeric, omega-3, collagen, boswellia, MSM, SAMe, and vitamin D for joint pain — what the trials actually show, dosages, and drug interactions.
0 products reviewed · Updated May 12, 2026
7 Best Biotin Supplements of 2026
Dr. David Taylor reviews the 7 best biotin supplements of 2026. Honest doctor's take on dosing, lab test interference, who actually needs biotin, and our top picks.
7 products reviewed · Updated Jul 29, 2026
7 Best CoQ10 Supplements of 2026
Dr. David Taylor reviews the best CoQ10 supplements of 2026. Compare ubiquinone vs ubiquinol, statin support, dose, absorption, and third-party certifications.
7 products reviewed · Updated Jul 29, 2026
7 Best Ashwagandha Supplements of 2026
Dr. David Taylor reviews the best ashwagandha supplements of 2026. Compare KSM-66, Sensoril, organic, and gummy formulas by withanolide content, dose, and clinical evidence.
7 products reviewed · Updated Jul 28, 2026
7 Best Zinc Supplements of 2026
Dr. David Taylor reviews the best zinc supplements of 2026. Compare picolinate, bisglycinate, gluconate, and lozenges by bioavailability, dose, and copper balance.
7 products reviewed · Updated Jul 26, 2026
7 Best Prenatal Vitamins of 2026
Dr. David Taylor reviews the best prenatal vitamins of 2026. Compare methylfolate vs folic acid, chelated iron, DHA, and third-party tested picks for every stage.
7 products reviewed · Updated Jul 23, 2026
7 Best Fiber Supplements of 2026
Dr. David Taylor, MD, reviews the best fiber supplements of 2026 — psyllium vs wheat dextrin, IBS/SIBO cautions, drug-timing rules, and dose ramp-up.
7 products reviewed · Updated Aug 12, 2026
Probiotics vs Prebiotics: An MD's Guide to Understanding the Difference
Dr. David Taylor explains the difference between probiotics and prebiotics — how each works, food sources, health benefits, supplement guidance, and who should avoid them.
0 products reviewed · Updated Apr 14, 2026
8 Best Melatonin Supplements of 2026
Dr. David Taylor reviews the best melatonin supplements of 2026 — USP-verified tablets, gummies, fast-dissolve, extended-release, and clinical-grade capsules matched to your exact sleep need.
8 products reviewed · Updated Jul 19, 2026
Melatonin vs Magnesium for Sleep: An MD's Evidence-Based Comparison
Dr. David Taylor compares melatonin and magnesium for sleep — how each works, clinical evidence, dosing, side effects, drug interactions, and how to choose the right one for your sleep issue.
0 products reviewed · Updated Apr 10, 2026
7 Best Calcium Supplements of 2026
Dr. David Taylor reviews the best calcium supplements of 2026. Compare calcium carbonate vs citrate, tablet vs gummy vs liquid, and USP vs non-certified options for bone health.
7 products reviewed · Updated Jul 16, 2026
7 Best Iron Supplements of 2026
Dr. David Taylor reviews the best iron supplements of 2026. Compare ferrous sulfate vs iron bisglycinate, tablets vs liquids vs gummies, and USP vs NSF-certified options.
7 products reviewed · Updated Jul 16, 2026
8 Best Collagen Supplements of 2026
Dr. David Taylor reviews the best collagen supplements of 2026. Compare top-rated powders, capsules, liquids, and gummies by collagen type, source, dose, and third-party testing.
8 products reviewed · Updated Jul 16, 2026
7 Best B12 Supplements of 2026
Dr. David Taylor reviews the best B12 supplements of 2026. Compare methylcobalamin vs cyanocobalamin, sublingual vs capsule, and USP vs NSF-certified options.
7 products reviewed · Updated Aug 12, 2026
8 Best Multivitamins for Women of 2026
Dr. David Taylor reviews the best multivitamins for women of 2026. Compare gummies, tablets, and whole-food capsules by iron content, folate form, and age-appropriateness.
8 products reviewed · Updated Aug 17, 2026
7 Best Turmeric Supplements of 2026
Dr. David Taylor, MD, reviews the best turmeric supplements on Amazon. Compare top-rated curcumin formulas by dose, bioavailability, form, and third-party testing for joint and inflammation support.
7 products reviewed · Updated Aug 17, 2026
7 Best Probiotics of 2026
Dr. David Taylor reviews the best probiotics on Amazon. Compare top-rated supplements by CFU count, strain diversity, delivery system, and clinical evidence.
7 products reviewed · Updated Aug 11, 2026
7 Best Electrolyte Powders of 2026
Dr. David Taylor reviews the best electrolyte powders of 2026. Compare top-rated brands by sodium dose, sugar content, and use case for sports, keto, and illness recovery.
7 products reviewed · Updated Aug 9, 2026