# Protein Guide: Whey, Fish or Vegan - Which One Suits You?

> Not all protein is equal - there are relevant differences in amino acid profile, bioavailability and origin. A factual comparison featuring WOO® products.

Choosing the right protein supplement can feel overwhelming given the variety on the market. It is not just about protein content, but also about amino acid quality, digestibility and the specific purpose. An informed decision requires understanding the differences between the various types of protein.

## Criteria for High-Quality Proteins

The **biological value (BV)** indicates how efficiently the body can convert ingested protein into its own protein. A high value, as with **whey protein** (104-110), points to excellent usability. The **DIAAS (Digestible Indispensable Amino Acid Score)** is a more modern standard that takes digestibility and the ratio of essential amino acids into account. Another important factor is the **leucine content**, since leucine is considered the primary trigger for muscle protein synthesis. **Digestion speed** also influences when a protein is best used, for example quickly after training or slowly before going to bed.

## Whey Protein: The Classic

**Whey protein** is known for its complete amino acid profile and a particularly high content of **leucine**, the key to muscle protein synthesis. It is **rapidly absorbed by the body**, making it ideal for post-workout recovery. Blood amino acid levels peak about 60 to 90 minutes after intake. **Whey isolate** is a highly purified form that is almost lactose-free and has a protein content of over 90 %, making it the preferred choice for people with lactose intolerance.

## Salmon Protein: A Special Alternative

**Salmon protein** offers a complete, high-quality amino acid profile comparable to whey protein. It stands out for natural components such as **taurine**, which fulfills important functions in the cardiovascular and nervous systems, as well as **astaxanthin**, a powerful antioxidant. For people who avoid dairy or want to diversify their protein sources, salmon protein is an excellent option. It is a valuable addition to a balanced diet and can help support various bodily functions.

## Vegan Proteins: Cleverly Combined

Plant proteins often have incomplete amino acid profiles, meaning they lack one or more essential amino acids. By **combining different plant sources**, such as pea, rice and pumpkin protein, a **complete amino acid profile** can nevertheless be achieved. Studies show that well-formulated plant proteins, when adequately dosed, can have similar effects on muscle protein synthesis as animal proteins, although a somewhat higher total amount is often required to reach the leucine threshold.

For optimal post-workout support, we recommend **WOO® Protein** and, as a high-quality plant-based alternative, **WOO® Vegan**. Available in our shop.

## Frequently Asked Questions

**Which protein is best for building muscle?**
Whey protein, especially isolate, is considered the gold standard for building muscle thanks to its high leucine content and rapid availability, particularly after training. It quickly delivers the building blocks needed for muscle repair and growth.

**Can I use plant protein just as effectively as animal protein?**
Yes, by skillfully combining different plant protein sources, a complete amino acid profile can be achieved that rivals animal proteins. A somewhat higher total dose may be required, however, to achieve the same effect.

**What is the difference between whey concentrate and isolate?**
Whey isolate is a more heavily filtered form of whey protein with a higher protein content and lower lactose and fat content than whey concentrate. It is therefore better suited for people with lactose intolerance.

## Sources

Morton et al. (2018), British Journal of Sports Medicine - Meta-analysis protein supplementation and muscle mass.
Langer & Munoz (2021), Nutrients - Protein synthesis, animal vs plant.
van Vliet et al. (2015), J Nutr - Skeletal muscle anabolic response to plant vs animal protein.

*WOO® Protein in the NEMAPO Shop.*