How much protein per day?

1.6–2.2 g per kg of bodyweight is the evidence sweet spot for resistance-trained adults. Cutting phases sit at the higher end (2.0–2.4 g/kg) to protect lean mass.

Whey isolate or whey concentrate?

Isolate is lower in lactose + carbs (better for cutting or lactose sensitivity); concentrate is cheaper per gram of protein. Both hit the same muscle-protein-synthesis threshold at 25–30 g.

Nutrascia's protein category covers the full absorption spectrum: Pro Whey (post-workout), Advanced Casein (overnight slow-release), and high-protein mass gainers for hard-gainers. All halal, third-party batch tested.