Head-to-head
Comparisons
Two close cousins, side by side. Where the differences actually matter — and where they don't.
28 comparisons
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New Alpha-GPC vs CDP-Choline (Citicoline)
Alpha-GPC · choline alphoscerate vs CDP-Choline · Citicoline
Evidence: promising · 8 criteria · 16 sources · Apr 20, 2026
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New Apigenin vs Chamomile Extract
Apigenin · isolated flavone vs German Chamomile Extract · Matricaria recutita
Evidence: promising · 8 criteria · 14 sources · Apr 25, 2026
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New Ashwagandha KSM-66 vs Sensoril
KSM-66 Ashwagandha · Ixoreal vs Sensoril Ashwagandha · Natreon
Evidence: promising · 8 criteria · 14 sources · Apr 28, 2026
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New Astaxanthin vs Lutein for eye health antioxidants
Astaxanthin vs Lutein · with zeaxanthin
Evidence: promising · 9 criteria · 20 sources · May 14, 2026
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New Berberine vs Metformin
Berberine · dietary supplement vs Metformin · prescription biguanide
Evidence: robust · 9 criteria · 21 sources · Apr 9, 2026
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New Ceylon Cinnamon vs. Cassia Cinnamon for Coumarin Safety
Ceylon cinnamon · Cinnamomum verum vs Cassia cinnamon · C. cassia, C. burmannii, C. loureiroi
Evidence: robust · 6 criteria · 11 sources · Apr 11, 2026
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New Collagen Peptides vs Bone Broth
Collagen Peptides · Hydrolyzed vs Bone Broth · Traditional/Commercial
Evidence: promising · 8 criteria · 17 sources · Apr 14, 2026
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New Creatine monohydrate vs creatine anhydrous for muscle growth and strength
Creatine monohydrate vs Creatine anhydrous
Evidence: robust · 8 criteria · 11 sources · May 8, 2026
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New Creatine Monohydrate vs Creatine HCL
Creatine Monohydrate · CM vs Creatine Hydrochloride · Cr-HCl
Evidence: robust · 7 criteria · 10 sources · Apr 13, 2026
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New Current Body Weight vs Goal Body Weight for calculating daily protein intake needs
Current (Actual) Body Weight method vs Goal/Ideal/Adjusted Body Weight method
Evidence: promising · 7 criteria · 11 sources · Apr 28, 2026
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New GABA vs L-Theanine for calming (mechanism-focused)
L-Theanine vs GABA · gamma-aminobutyric acid
Evidence: promising · 8 criteria · 12 sources · Apr 18, 2026
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New Liposomal Vitamin C vs Standard Vitamin C (Absorption)
Liposomal Vitamin C · liposome-encapsulated ascorbic acid vs Standard Vitamin C · ascorbic acid; tablets/capsules
Evidence: promising · 8 criteria · 13 sources · Mar 31, 2026
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New Magnesium Glycinate vs Magnesium Citrate
Magnesium glycinate · magnesium bisglycinate vs Magnesium citrate
Evidence: promising · 6 criteria · 13 sources · Apr 30, 2026
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New Magnesium Threonate vs Magnesium Glycinate (brain vs body optimization)
Magnesium L-Threonate · Magtein vs Magnesium Glycinate · bisglycinate/diglycinate
Evidence: promising · 8 criteria · 10 sources · Mar 15, 2026
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New Marine Collagen vs Bovine Collagen (source comparison)
Marine collagen peptides · fish-derived vs Bovine collagen peptides · hide-derived
Evidence: promising · 7 criteria · 22 sources · Apr 23, 2026
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New Methylfolate vs Folic Acid for MTHFR Mutation Support
L-methylfolate · 5-MTHF vs Folic acid
Evidence: promising · 7 criteria · 15 sources · Apr 6, 2026
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New NAD+ vs NMN for common wellness goals
NAD+ · direct NAD+ therapy vs NMN · nicotinamide mononucleotide
Evidence: promising · 7 criteria · 12 sources · Apr 28, 2026
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New NMN vs NR for NAD+ precursor comparison
β-Nicotinamide Mononucleotide · NMN vs Nicotinamide Riboside · NR, as NR chloride
Evidence: promising · 8 criteria · 19 sources · Apr 29, 2026
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New Omega-3 Fish Oil vs Krill Oil
Fish Oil · EPA+DHA from fish oil vs Krill Oil · Antarctic krill oil
Evidence: promising · 7 criteria · 14 sources · Apr 15, 2026
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New Probiotics vs Prebiotics
Probiotics · live microbes vs Prebiotics · selective substrates
Evidence: promising · 8 criteria · 32 sources · May 4, 2026
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New Seed Oils (Vegetable Oils) vs Animal Fats (Ghee, Beef Tallow) for cooking and overall health
Seed Oils · canola, soybean, sunflower; high-oleic variants vs Animal Fats · ghee/clarified butter, beef tallow
Evidence: robust · 7 criteria · 27 sources · Apr 11, 2026
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New Theobromine vs TeaCrine (theacrine) for long-lasting low-stimulation energy
Theobromine vs TeaCrine · theacrine
Evidence: promising · 7 criteria · 14 sources · Mar 24, 2026
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New TMG (Trimethylglycine) vs Betaine HCl
TMG · betaine anhydrous; trimethylglycine vs Betaine HCl · betaine hydrochloride
Evidence: promising · 7 criteria · 16 sources · May 7, 2026
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New Tongkat Ali vs Fadogia agrestis
Tongkat Ali · Eurycoma longifolia vs Fadogia agrestis
Evidence: promising · 7 criteria · 17 sources · Apr 5, 2026
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New Trans-Resveratrol vs Pterostilbene for Longevity
Trans-Resveratrol vs Pterostilbene
Evidence: promising · 7 criteria · 17 sources · Apr 18, 2026
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New Uridine Monophosphate vs Triacetyluridine
Uridine 5'-Monophosphate · UMP vs Triacetyluridine · Uridine Triacetate, TAU
Evidence: promising · 8 criteria · 18 sources · May 5, 2026
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New Vitamin D3 vs Vitamin D2 for efficacy and bioavailability
Vitamin D3 · cholecalciferol vs Vitamin D2 · ergocalciferol
Evidence: robust · 8 criteria · 10 sources · Apr 3, 2026
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New Whey Protein vs Plant Protein
Whey protein · concentrate/isolate/hydrolysate vs Plant protein · pea/soy/rice blends
Evidence: robust · 8 criteria · 19 sources · Apr 4, 2026