Nutraceutical proteins are those that provide health benefits beyond basic nutrition. Whey protein concentrates are rich in essential amino acids and bioactive peptides that support muscle growth, immunity, and overall health.
Whey protein concentrates: Widely recognized as nutraceutical proteins due to their health-promoting properties.
Seed storage proteins, Soya protein, Milk proteins: While nutritive, they are not typically classified specifically as nutraceutical proteins like whey concentrates.
Hence, the correct answer is (D) Whey protein concentrates.