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The XWERKS blog
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Explore the full collection of articles, research summaries, and practical guides.
Leucine and Muscle Growth: Why Protein Quality Matters
TL;DR Leucine is the amino acid that switches on muscle protein synthesis — it acts as a signal, not just a building block. The...
Read articleWhat Makes New Zealand Whey Different?
TL;DR New Zealand whey's reputation rests on farming practice and regulation, not on a different protein molecule. The amino acids are the same as...
Read articleProtein Isolate vs Concentrate for Digestion
TL;DR If protein powder gives you bloating, gas, or cramping, lactose is the most likely culprit — and that's the main practical difference between...
Read articleDoes a High-Protein Diet Damage Your Kidneys?
TL;DR For people with healthy kidneys, high-protein diets have not been shown to cause kidney damage. Multiple systematic reviews and controlled trials support this....
Read articleCan You Build Muscle in a Calorie Deficit?
TL;DR Yes — but not equally well for everyone. Building muscle while losing fat ("body recomposition") is well documented in specific populations and much...
Read articleProtein for People Who Don't Have a Big Appetite
TL;DR If you fill up fast, the fix isn't eating more volume — it's raising protein density per bite so a small plate carries...
Read articleThe Best High-Protein Breakfasts Without Eggs
TL;DR Eggs dominate high-protein breakfast advice, which is unhelpful if you have an allergy, don't eat them, or are simply tired of eggs. The...
Read articleHow to Eat 150 Grams of Protein Per Day
TL;DR 150g of protein sounds like a lot until you break it down: four feedings of roughly 35-40g each. That's it. The failure point...
Read articleWhy Protein Needs Increase During Weight Loss
TL;DR Protein requirements go up when calories go down — typically to 2.0-2.4g/kg during a deficit, higher than the 1.6-2.2g/kg used for muscle gain....
Read articleWhey Protein Before or After a Workout
TL;DR For most people it makes very little difference. Total daily protein is the dominant variable; the pre-versus-post debate is a rounding error next...
Read articleHow Much Protein Do You Need to Build Muscle?
TL;DR For building muscle, the research converges on 1.6-2.2g of protein per kg of body weight per day — roughly 0.7-1.0g per pound. A...
Read articleZone 2, HIIT or Walking: Which Type of Cardio Do You Need?
TL;DR These three aren't competitors — they do different jobs at different costs. The right question isn't which is best, it's which one you're...
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