Macro partitioning
Microalgae species such as Chlorella vulgaris and Arthrospira platensis provide high-quality protein with essential amino acid scores (AAS) equal to or exceeding those of animal-derived proteins, making them viable alternatives for human nutrition.
If you are looking for a high-quality protein source, consider microalgae like Chlorella or Spirulina. They contain all essential amino acids in amounts that meet or exceed the requirements for human health, rivaling the quality of animal proteins. This makes them a sustainable and effective option for meeting your daily protein needs.
Microalgae Chlorella vulgaris and Chlorella sorokiniana had AAS values of 1.10 and 1.16, respectively... animal-derived proteins are generally the highest rated... casein has the AAS values of 1.03–1.32
Why this rating
The paper is a review citing multiple primary studies with specific AAS data, though it lacks a single large-scale clinical trial on human health outcomes.
Source
Microalgae as Sources of High-Quality Protein for Human Food and Protein Supplements
Yanwen Wang et al. · Foods · 2021
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →