The Claim

The in vitro protein digestibility of soy sausage is 80.8%, which is significantly lower than the in vitro protein digestibility of pork sausage (87.1%), wheat sausage (88.0%), and wheat-soy sausage (89.0%), indicating reduced protein bioavailability under simulated gastrointestinal conditions.

Source: Plant-Based vs. Pork Sausages: Protein Nutritional Quality and Antioxidant Potential in the Bioaccessible Fraction

What the research says

Roughly balanced

Support and challenge are close. The picture may shift as more studies come in.

Supports
7score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

Soy sausage breaks down less during simulated digestion in lab tests compared to pork, wheat, and wheat-soy sausages, resulting in lower protein availability.

See the scientific wording

The in vitro protein digestibility of soy sausage (80.8%) was significantly lower than that of pork sausage (87.1%), wheat sausage (88.0%), and wheat-soy sausage (89.0%), indicating that soy-based formulations may have reduced protein bioavailability under simulated gastrointestinal conditions.

Why this might work

Soy protein is harder for digestive enzymes to break down because it is tightly folded and bound to compounds that block the enzymes, so less protein gets broken into amino acids that the body can absorb.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Plant-Based vs. Pork Sausages: Protein Nutritional Quality and Antioxidant Potential in the Bioaccessible Fraction

    In a lab test that mimics human digestion, soy sausage released less usable protein than pork or wheat sausages, meaning your body might not absorb as much protein from it.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.