Question 1

Whey concentrate vs whey isolate — which should I buy?

Accepted Answer

Whey concentrate (cheaper, 70-80% protein by weight, more lactose) is fine for 95% of users. Whey isolate (more expensive, 90%+ protein, near-zero lactose) is the right pick only if you have lactose intolerance, want lower carb intake, or are cutting weight aggressively. For everyday use, concentrate is the better-value choice.

Question 2

Do I need protein powder if I eat quark?

Accepted Answer

Often no. 250g of quark already delivers 25-30 g of protein — same as a scoop. We typically recommend powder only if you can't hit your daily protein target with food alone, or for convenience post-workout. A quark + fruit breakfast is genuinely better than a shake — more fiber, more micronutrients, similar protein.

Question 3

Is plant-based protein as effective as whey?

Accepted Answer

Yes — when you account for total daily intake. Plant proteins have lower per-gram leucine content and slightly lower bioavailability, but bumping the dose 20% closes the gap. A 30g plant scoop is roughly equivalent to a 25g whey scoop. The only caveat is intra-workout: whey absorbs faster, so post-training is its strongest use case.

Question 4

How do I store protein powder?

Accepted Answer

Sealed container, room temperature, away from direct sun. Once opened, use within 6 months — protein powder degrades slowly but the fat in concentrate blends can go rancid after 6-9 months. If you smell anything sour or off, throw it out.

Question 5

Can I add protein powder to quark recipes?

Accepted Answer

Yes — quark + powder pushes a single serving to 40-50 g of protein. The trick is to thin the quark slightly with milk or water first (powder thickens it more) and to whisk it in with a hand frother to avoid clumps. Most of the recipes on this site already include powder-optional notes in the ingredients.