Protein powder

Lexique

Protein powder

Definition

Protein powders are concentrated, dehydrated protein supplements derived from various sources (milk, eggs, plants). Their main purpose: hit daily protein needs simply and quickly when food is hard.

💡 Protein powders are a tool, not a magic bullet. They can replace nothing for those who eat enough protein from food.


The different types of protein powders

TypeSourceAbsorptionBest for
Whey concentrateMilkFast (1-2h)Post-workout, snack
Whey isolateMilk filteredVery fastLactose intolerant, low-cal
Whey hydrolysatePre-digested wheyUltra fastPremium, more expensive
CaseinMilkSlow (5-7h)Before sleep
Plant proteinPea, rice, soyMediumVegan, allergic
Egg whiteEgg whitesMediumLactose intolerant

Benefits of protein powders

  • Convenience: 25-30 g protein in 30 sec
  • Affordable: cheaper per gram than meat
  • Time-efficient: ideal for busy schedules
  • Quality control: known protein content
  • Versatile: shake, oatmeal, pancakes, recipes
  • Travel-friendly: easy to carry

How much protein per day?

ProfileDaily intake
Sedentary0.8 g/kg of BW
Active general1.2-1.6 g/kg
Strength training (hypertrophy)1.6-2.2 g/kg
Cutting (muscle preservation)2.2-2.6 g/kg
Elite athleteUp to 3 g/kg

Protein powders fill the gap when you can't eat enough.


How to choose a quality protein powder

  • Protein content: 80%+ of weight (concentrated whey)
  • Short ingredient list: no proprietary blend
  • Independent quality stamp: Informed Sport, NSF
  • Reasonable price: $25-50/kg for whey
  • Taste/texture: matters for daily compliance
  • ❌ Avoid: excessive sweeteners, fillers, fancy "complexes"

When to take protein powder

  • Post-workout: quick, fast absorption
  • Snack: between meals to maintain steady intake
  • Breakfast: complement to oats or yogurt
  • Before bed: casein for slow release
  • When you can't eat solid: rushed mornings, traveling

Common mistakes

  • ❌ Replacing real food with shakes (lack of micros, fiber)
  • ❌ Taking 100 g of protein in one go (max ~40 g per meal usefully absorbed)
  • ❌ Buying based on packaging, not ingredients
  • ❌ Thinking that "more = better" (excess protein doesn't help)
  • ❌ Neglecting other macros (carbs, fats, fiber)

Key takeaways

Protein powders are a convenience tool, not magic. Useful to fill the gap if you struggle hitting your daily protein. Real food first, supplement second. Choose quality, simple, well-priced.

The app for fitness coaches
poweredby
Claude
White abstract starburst shape with elongated arms on a muted orange background.

Manage your clients, payments, and programs from one single platform. Spend less time managing and more time coaching.

No commitment, no credit card required