Vitamin D2 vs D3: Which Form Raises Vitamin D Levels Better?
Vitamin D2 and D3 both raise vitamin D status, but research shows important differences in how strongly and how long they affect blood levels.
Monique Tello, MD, MPH
Read article →
Bextera Nutrition
Supplements
Methylcobalamin vs Cyanocobalamin: Does the Form of Vitamin B12 Actually Matter?
Methylcobalamin sounds more premium than cyanocobalamin, but does the form of vitamin B12 actually change absorption or effectiveness?
Patricia Weiser, PharmD
Read article →
Zinc
A source-linked guide to elemental zinc, supplement forms, label amounts, Daily Value, absorption evidence and safety context.
Patricia Weiser, PharmD
Read article →
Vitamin B12
A source-linked guide to cyanocobalamin, methylcobalamin and other B12 forms, label amounts, absorption and Daily Value.
Patricia Weiser, PharmD
Read article →
Pre-Workout Caffeine: What It Actually Adds — and What More Doesn't Fix
Caffeine can improve some exercise outcomes, but dose, timing, tolerance and side effects matter more than chasing the largest milligram number.
Cori Ritchey, CSCS
Read article →
How to Read a Supplement Facts Label Without Getting Distracted by the Front
Serving size, active ingredient amounts, Daily Value and proprietary blends tell you more about a supplement than most front-label marketing.
Patricia Weiser, PharmD
Read article →
Fish Oil Labels: Why 1,000 mg of Fish Oil Is Not 1,000 mg of EPA + DHA
Fish-oil weight, total omega-3 content, EPA and DHA are separate label numbers. Here is how to compare them correctly.
Patricia Weiser, PharmD
Read article →
Creatine Weight Gain: Water, Muscle or Fat?
Creatine can move the scale, but early water retention, lean-body-mass changes and body fat are different measurements.
Cori Ritchey, CSCS
Read article →
Magnesium Glycinate vs Citrate: Which Form Has Better Evidence?
An evidence-led comparison of magnesium glycinate and magnesium citrate covering elemental magnesium, absorption evidence, clinical research, tolerability claims and the limits of direct comparisons.
Patricia Weiser, PharmD
Read article →
Creatine HCl vs Monohydrate: Does Better Solubility Mean Better Results?
A direct evidence comparison of creatine hydrochloride and creatine monohydrate, covering solubility, human research, training outcomes and the limits of current evidence.
Cori Ritchey, CSCS
Read article →