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The XWERKS blog
Nutrition & hydration
Food, fluids, and workout fuel: make the everyday decisions simpler.
Electrolytes vs. Carbs: What Do You Need During a Workout?
Separate fluid, carbohydrate and sodium needs with a workout decision guide, label comparison and a worked fueling example.
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Whey Protein vs Ready-to-Drink Shakes: What Are You Paying For?
Compare whey powder and ready-to-drink shakes by cost per 25 g protein, calories, ingredients and convenience using current manufacturer labels.
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Sweat Rate vs Sweat Sodium: Which Should You Measure?
Two runners can lose the same amount of sweat but different amounts of sodium. Learn what each measurement tells you and how to interpret...
Read articleElectrolytes vs Water: When Plain Water Isn't Enough
Electrolytes vs water: plain water is fine for daily life and short workouts, but once you're sweating hard for 60+ minutes or training in...
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Vitamin D from Sun vs Supplement: The Honest Comparison
Both sun and vitamin D supplements work; the better choice depends on latitude, lifestyle, skin tone, and other individual factors. No universal winner. Practical...
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Carb Backloading: Research vs. Marketing Honest Review
Carb backloading concentrates carbs in evening post-workout. Theoretical mechanism vs research outcomes. Where it works, where claims exceed evidence.
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Low Carb vs Keto: The Biological Difference Explained
Low-carb is broad (50-150g daily); keto specifically produces nutritional ketosis (under 50g). The biological difference, macro comparisons, and who benefits from each.
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Carbs vs Protein for Muscle Building
Muscle building requires both carbs and protein — different roles, not competing. Protein for building blocks; carbs for training intensity and recovery.
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Glycemic Index vs Glycemic Load: The Practical Difference
TL;DR Glycemic index (GI) measures how fast a food raises blood sugar in a 50g carbohydrate test serving. Glycemic load (GL) accounts for actual...
Read articleCluster Dextrin vs. Gatorade vs. LMNT vs. Liquid IV
Nutrition Science Cluster Dextrin vs. Gatorade vs. LMNT vs. Liquid IV The research-backed breakdown of what actually fuels performance — and what's just flavored...
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BCAAs vs EAAs
BCAAs vs EAAs: What's the Difference and Which Should You Take? EAAs (essential amino acids) beat BCAAs (branched-chain amino acids) for muscle building —...
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Electrolyte Powders vs Sports Drinks
Electrolyte Powders vs Sports Drinks: A Science-Based Showdown Hydration is one of the most overlooked aspects of performance. Whether you’re training in the gym,...
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