Creatine vs whey protein
Creatine monohydrate and whey protein are not substitutes. Creatine is a few grams a day that raises the creatine store in muscle. Whey is a convenient protein food that helps you hit a daily protein target. The International Society of Sports Nutrition supports creatine monohydrate at about 3 to 5 grams a day, and a higher daily protein intake for people who train. You do not have to pick one. You also do not need a blend that hides the dose of either.
Store shelves put creatine monohydrate and whey protein in the same tub aisle. The labels both say muscle. The evidence says they work on different parts of training.
What creatine is doing
The ISSN position stand on creatine (PMID 28615996) is the practical summary: creatine monohydrate raises muscle creatine, it is the form with the trials, and the maintenance dose used across sports research is about 3 to 5 grams a day. A loading week is optional. That question is covered in creatine loading or a daily dose. Creatine is not a protein and it does not replace a meal.
What whey is doing
The ISSN protein stand (PMID 28642676) treats protein supplements as a way to reach a daily intake, not as a drug with a special clock. A meta-analysis of protein supplementation with resistance training (Morton and colleagues, PMID 28698222) found that extra protein increased gains, with diminishing returns as the daily intake got higher. Whey is simply a fast, complete protein. Casein is slower. Neither one stocks the muscle creatine pool.
How to use them together
A typical training day can include 3 to 5 grams of creatine monohydrate and enough protein from food plus whey to meet the day's target. The creatine can sit in any drink. It does not have to be mixed into the whey. If the budget only covers one, food protein comes first for people who are short on protein, and creatine comes first for people who already eat enough protein and want the creatine effect.
Certified examples, limited to names that were on a public list, are in certified creatine products compared. This page does not link to a store.
Sources
- Kreider RB, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017. PMID: 28615996.
- Jäger R, et al. International Society of Sports Nutrition position stand: protein and exercise. J Int Soc Sports Nutr. 2017. PMID: 28642676.
- Morton RW, et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength. Br J Sports Med. 2018. PMID: 28698222.