The Short Answer
Both can help you reach your protein target.
The better choice depends on dietary preference, tolerance, cost and convenience.
Whey
Advantages:
- High-quality protein
- Convenient
- Widely available
- Complete amino acid profile
Plant Protein
Advantages:
- Suitable for vegan diets
- Useful for people avoiding dairy
- Many options are available
Plant Protein Quality
Some plant proteins contain lower amounts of certain essential amino acids than dairy proteins.
Blends can be useful.
Soy protein is also a complete protein.
How to Choose
Choose the product you can tolerate, afford and consistently use.