WHYZ Learn is a free evidence-based supplement resource covering 70+ ingredients and guides, each written against primary scientific literature with real PubMed citations. WHYZ Learn covers the most researched supplement ingredients available today — including creatine monohydrate (500+ peer-reviewed studies), monk fruit extract (FDA GRAS since 2010), collagen peptides, stevia, inositol, NMN, L-theanine, spirulina, and tongkat ali. Every guide includes clinical dosage protocols, safety data, side effect profiles, and practical usage guidance. All content is produced by the WHYZ editorial team and reviewed against PubMed-cited research to ensure accuracy. WHYZ is a supplement brand specializing in pure, single-ingredient powders.
Ingredient Guides
In-depth guides to every ingredient we sell.
ALCAR (Acetyl-L-Carnitine)
BBCAAs (Branched-Chain Amino Acids)
AAshwagandha
ABeta-Alanine
ABlack Tea Extract
BChlorella
BBuffered Creatine (Kre-Alkalyn)
BCiticoline
BCranberry
BCollagen Peptides
BCreatine Ethyl Ester (CEE)
CCreatine HCL
BCreatine Monohydrate
ADHM (Dihydromyricetin)
BCreatine Magnesium Chelate
CInositol
AL-Carnitine
AD-Mannose
BLion's Mane
BL-Theanine
BNMN
BRhodiola Rosea
BMagnesium Glycinate
BShilajit
BSpirulina
BStevia
ATongkat Ali
BVitamin C
AVitamin D
AMonk Fruit Extract
BWheatgrass
CLatest Guides
Comparisons, how-tos, and practical advice.
ALCAR Dosage: How Much to Take for Cognitive Benefits
Evidence-based ALCAR dosage guide covering research-backed amounts for cognitive support, brain health, and mental clarity. Includes timing, forms, and safety considerations.
BCAA vs EAA: Which Amino Acids Should You Take?
BCAAs and EAAs both support muscle recovery, but they are not interchangeable. Compare the research, dosing, and best use cases.
ALCAR vs L-Carnitine: Brain vs Body Performance
ALCAR crosses the blood-brain barrier for cognitive support. L-Carnitine targets fat metabolism and exercise. Compare mechanisms, dosing, and evidence.
Best Sweetener for Keto Baking: Allulose vs Erythritol vs Monk Fruit
Find the best keto baking sweetener for cookies, cakes, brownies, and frostings. Compare allulose, erythritol, monk fruit, and stevia.
Best Sweetener for Keto: Monk Fruit, Stevia, Allulose, Erythritol
Compare the best keto sweeteners by net carbs, glycemic index, taste, baking performance, and blood sugar impact.
Beta-Alanine Dosage: How Much to Take for Performance
Research-backed beta-alanine dosing guide. Learn the optimal daily dose, how to split servings to reduce tingling, and how long loading takes.
Beta-Alanine Tingling: Is It Normal and How to Stop It
Beta-alanine causes a harmless skin tingling called paresthesia in most users. Here is the science behind why it happens and how to reduce it.
Chlorella Benefits: Detox, Immunity, and Gut Health
Discover the science behind chlorella: heavy metal detoxification, immune modulation, and gut microbiome support. Evidence-based with real PMIDs.
Citicoline Dosage: How Much to Take for Brain Health
Citicoline (CDP-choline) dosage guide — what clinical trials show about effective amounts, timing, and realistic results.
Bovine vs Marine Collagen: Which Should You Choose?
Bovine vs marine collagen compared on type, bioavailability, joint and skin evidence, dosage, cost, and sustainability to help you choose.
Citicoline vs Alpha GPC: Which Choline Source is Better?
Citicoline and alpha-GPC are the two most studied choline supplements. This guide compares their mechanisms, clinical evidence, doses, and who each one is right for.
Cordyceps Benefits: Energy, Performance, and Immunity
Science-backed breakdown of cordyceps benefits; from VO2 max and ATP production to immune modulation. Real studies, real PMIDs, no hype.
Collagen for Skin: Benefits, Dosage, and Results
What clinical research shows about collagen peptides for skin hydration, elasticity, and wrinkle reduction. Real PMIDs and honest dosage guidance.
Creatine and Tongkat Ali: The Ultimate Muscle-Building Stack?
Creatine boosts ATP. Tongkat Ali supports testosterone. Together, the research suggests a synergistic edge for muscle, strength, and recovery.
Creatine Before or After Workout? Best Timing for Results
Should you take creatine before or after a workout? Research slightly favors post-workout, but daily consistency matters more than timing.
Creatine Bloating: How to Avoid It
Does creatine cause bloating? Learn what separates normal muscle hydration from GI distress and how to take creatine without digestive discomfort.
Creatine and Caffeine: Can You Take Them Together?
Can you stack creatine and caffeine safely? Here's what the research actually shows about performance effects, absorption, timing, and what to watch out for.
Creatine for Women: Benefits, Safety, and Myths Debunked
Creatine benefits for women — muscle strength, bone density, cognition, and mood. Same 3-5g dose, no bloating myth, and evidence by life stage.
Collagen for Joints: Benefits, Dosage, and Pain Relief
Does collagen help joint pain? Clinical evidence on type I, II, and III collagen for cartilage, knee osteoarthritis, and joint function with real PMIDs.
Creatine and Hair Loss: What the Science Actually Says
Does creatine cause hair loss? One 2009 study found elevated DHT but zero studies measured actual hair loss. Full evidence breakdown.
Creatine HCL Dosage: How Much Do You Need?
Creatine HCL dosage guide backed by research. Learn why 750-1,500 mg works, whether you need a loading phase, and how it compares to monohydrate dosing.
Creatine Loading Phase: 20g Protocol vs 5g Daily
Creatine loading at 20 g per day saturates muscles faster, but 3 to 5 g daily reaches the same endpoint. Compare protocols and side effects.
Creatine Monohydrate vs HCL: Full Comparison
Creatine monohydrate vs HCL compared — absorption, dosing, side effects, evidence quality, cost, and which form fits your goals.
Creatine and Water Retention: What's Really Happening
Creatine causes water retention, but where that water goes matters. Learn the science behind muscle hydration, bloat myths, and what to expect on the scale.
Creatine While Cutting: Does It Help or Hurt Your Results?
Should you take creatine while cutting? Research on muscle preservation, water retention concerns, dosing, and whether to keep supplementing.
D-Mannose Dosage for UTI Prevention and Treatment
Research on D-mannose for UTIs has tested 2 g/day for prevention. Here is what the trials found, what the 2024 JAMA RCT means, and how to dose it correctly.
DHM Dosage: How Much to Take for Hangover Relief
Science-backed DHM (dihydromyricetin) dosage guide covering pre-drinking and next-morning dosing, mechanisms of action, safety, and what the research actually shows.
D-Mannose vs Cranberry for UTIs: What the Research Shows
D-mannose vs cranberry for UTI prevention compared on mechanism, clinical trial evidence, dosage, and who benefits most from each.
Do BCAAs Break a Fast? What the Science Says
BCAAs contain calories and trigger mTOR, but do they actually break a fast? Here is what research says about BCAAs and intermittent fasting.
Does Monk Fruit Break a Fast? Pure Extract vs Blends
Pure monk fruit extract does not break a fast because it has zero calories and no glycemic impact. Blends with dextrose or maltodextrin can.
Inositol for PCOS: Dosage, Types & Evidence
Inositol for PCOS — how it works, optimal myo-inositol to D-chiro-inositol ratio, dosing protocols, and what clinical evidence shows.
L-Carnitine Dosage: How Much to Take for Fat Loss
L-carnitine can support fat metabolism, but only at the right dose. Here's what clinical evidence shows about dosage, timing, forms, and what to realistically expect.
Is Stevia Safe? What 50 Years of Research Says
Stevia has FDA GRAS status backed by decades of human trials. What the science says about long-term safety, gut health, and hormones.
L-Carnitine for Weight Loss: What the Studies Say
Does L-carnitine actually help with weight loss? We review the meta-analyses, the mechanisms, the limitations, and what the research actually supports.
L-Theanine for Sleep: Dosage, Benefits, and Side Effects
L-theanine promotes relaxation and may ease sleep onset, but how does it actually work? Here's what clinical research shows about dosage, timing, and whether it's right for you.
Lion's Mane and Alcohol: Can You Mix Them?
Lion's Mane supports nerve growth factor and cognitive function. Here's what research says about combining it with alcohol.
How Much Lion's Mane Should You Take? Dosage Guide
Lion's mane dosage varies by goal — cognitive support, mood, and nerve health. Here's what clinical trials actually used and how to dose correctly.
Magnesium Bisglycinate Benefits: Sleep, Anxiety, and More
Magnesium bisglycinate is highly absorbable. What clinical research shows about sleep, anxiety, and optimal dosage.
Magnesium Bisglycinate vs. Glycinate: What's the Difference?
Confused by magnesium bisglycinate vs. magnesium glycinate? Here's what the names actually mean, whether the distinction matters, and which form is best for sleep and anxiety.
Matcha Benefits: Energy, Focus, and Antioxidant Power
Explore the science-backed benefits of matcha: sustained energy, sharper focus, and potent antioxidant protection. Real studies, real PMIDs.
Monk Fruit Aftertaste: Why It Happens and How to Avoid It
The science behind monk fruit's aftertaste — how mogrosides create off-notes, how extract purity affects taste, and which products minimize the...
Monk Fruit and IBS: Is It Safe for Sensitive Stomachs?
Pure monk fruit extract is low-FODMAP and unlikely to trigger IBS symptoms. Learn what the research says and which products to avoid.
Is Monk Fruit Safe for Diabetics? Blood Sugar and Insulin Guide
Monk fruit has zero glycemic impact and does not raise blood sugar or insulin. Learn what people with diabetes should check on labels.
Monk Fruit Glycemic Index: Is It Really Zero?
Monk fruit extract has a glycemic index of zero and does not raise blood sugar. Learn how mogrosides work and what clinical trials show.
Is Monk Fruit Keto? Net Carbs, Ketosis, and Label Checks
Pure monk fruit is keto-friendly with zero net carbs and no glycemic impact. Learn which monk fruit blends are safe for ketosis.
Monk Fruit vs Erythritol: What's Different?
Monk fruit vs erythritol compared — calories, glycemic index, taste, gut health, baking performance, and the erythritol cardiovascular study.
Myo-Inositol for Weight Loss: Does It Work?
Can myo-inositol help with weight loss? We review the clinical evidence, how it affects insulin, BMI, fat mass, and who benefits most.
Myo-Inositol vs D-Chiro Inositol: Which to Take
Myo-inositol vs D-chiro inositol compared. Learn the 40:1 ratio, which form is best for PCOS, fertility, and insulin resistance.
Monk Fruit vs Stevia: Which Natural Sweetener Is Better?
A head-to-head comparison of monk fruit and stevia — taste, safety, price, baking performance, and which is best for your needs.
NMN Dosage: How Much Should You Take Daily?
Human clinical trials on NMN have tested 250–900 mg/day. Learn what each dose achieves, which showed best NAD+ and physical performance, and how to time it.
NMN vs NAD+: What's the Difference for Anti-Aging?
NMN vs NAD+ supplements explained — what each is, how they differ, what the human clinical trials show, and which to take for anti-aging.
NMN vs NR: Which NAD+ Precursor Actually Works?
NMN vs NR compared — metabolism, bioavailability, human clinical trial data, dosing, cost, and which NAD+ precursor to choose.
Shilajit Benefits: Energy, Testosterone & Cognition
Shilajit is a mineral-rich resin with fulvic acid and dibenzo-alpha-pyrones. What clinical research says about its effects on testosterone and energy.
Shilajit for Women: Hormones, Energy & Research
Shilajit research in women covers bone density, skin health, and fatigue. Here's what clinical trials show about benefits, safety, and dosing for women.
Shilajit vs Ashwagandha: Which Adaptogen Should You Take?
Shilajit vs ashwagandha compared side-by-side: mechanisms, evidence, benefits, and how to choose the right adaptogen for your goals.
Spirulina vs Chlorella: Which Is Better?
Spirulina vs chlorella compared — protein, B12, detox, heavy metal binding, dosage, and which green superfood fits your goals.
Why Does Stevia Taste Bitter?
The science behind stevia's bitter aftertaste — which compounds trigger it, why some people taste it more than others, and practical ways to minimize it.
Is Stevia Safe for Diabetics? What the Research Shows
Stevia has a glycemic index of zero and does not raise blood sugar. What clinical trials show about stevia's safety and metabolic effects for diabetics.
Does Stevia Cause Headaches? What the Evidence Says
Some people report headaches after stevia. Learn what research shows, why product blends are often the culprit, and how to test if stevia affects you.
Stevia vs Erythritol: Which Sweetener Should You Choose?
Stevia and erythritol are both zero-glycemic sweeteners, but they differ in taste, calories, gut tolerance, and cardiovascular data. Full comparison.
Sugar to Monk Fruit Conversion Calculator: Stevia, Allulose, Erythritol
Convert sugar to monk fruit, stevia, erythritol, allulose, or xylitol with exact ratios for coffee, baking, keto recipes, and everyday use.
Tongkat Ali Dosage: How Much to Take Daily
Clinical trials on Tongkat Ali used 200-400 mg/day of standardized extract. Here's what the research says about dosing, timing, and whether cycling is necessary.
Best Sweetener for Coffee (No Blood Sugar Spike)
Which sweetener belongs in your coffee for zero glycemic impact? A science-backed comparison of monk fruit, stevia, erythritol, and more.
Tongkat Ali vs Fadogia Agrestis: Which is Better?
Tongkat Ali has decades of human clinical trials. Fadogia agrestis has mostly rodent data. Here's what the research actually shows about each.
Vitamin C Dosage: How Much Should You Take Daily?
The RDA for vitamin C is 65-90 mg, but research suggests higher doses may offer additional benefits. Here is what clinical evidence says about optimal daily intake.
Wheatgrass Benefits: Detox, Energy, and Nutrient Powerhouse
Wheatgrass is packed with chlorophyll, vitamins C and E, and antioxidants. Explore the evidence-backed benefits, dosage, and how to add it to your routine.
When to Take BCAAs: Before, During, or After Working Out?
Does BCAA timing actually matter for muscle recovery and performance? Here is what the research shows about pre-workout, intra-workout, and post-workout supplementation.
When is the Best Time to Take L-Carnitine?
Discover the best time to take L-carnitine for exercise performance, fat metabolism, and recovery. Backed by clinical research and practical guidance.