Black oil sunflower seeds

[Chris09]

Boss is an excellent protein source 16-20% and Sunflower protein is less rich in the amino acid lysine than soybean protein but it does have a relatively high amount of the amino acids cystine and methionine.

To be honest I have never seed BOSS with protein any higher than 16 to 17% proteins.
The high proteins can be found in striped sunflower seed but there way lower in oils and fats.