This dataset contains the complete raw experimental data supporting all main figures, tables, and supplementary materials in the associated manuscript. The Excel file comprises 14 worksheets organised as follows: Hydrolysis and in vitro data (Sheets 1–5): Table 1 – SSC: Soluble solids content (°Brix), triplicate measurements for 4 enzymes × 3 hydrolysis times Table 1 – DH OPA: Degree of hydrolysis by OPA method, replicate measurements Table 1 – DH pH-stat: Degree of hydrolysis by pH-stat method, triplicate measurements Table 1 – Yield: Hydrolysate yield (%), triplicate measurements Fig 1 – ACE IC50: ACE inhibitory activity (IC₅₀, mg/mL) for freeze-dried and spray-dried samples, triplicate measurements In vivo animal data (Sheets 6–9): Fig 2 – Short-term BP: Individual SBP readings for SHR at 50 and 100 mg/kg doses Tables 2–3 – SBP: Individual systolic blood pressure data for 54 rats (6 groups × 9 animals) over 9 weeks Tables 2–3 – DBP: Individual diastolic blood pressure data for 54 rats over 9 weeks Table S4 – Body weight: Individual body weight data for 54 rats over 9 weeks Peptide data (Sheets 10–11): Table 4 – Peptide IC50: Dose–response absorbance data and IC₅₀ calculations for LSF, LTF, VTF, and YVF Table S2 – Preliminary TNBS: DH and ACE inhibition data from preliminary free-fall hydrolysis experiments (3 batches) Molecular docking data (Sheets 12–14): Table S8 – Docking Results: ACE and renin docking scores for all 128 successfully docked peptides, ranked by dual-target mean score Docking Parameters: Complete methodological details including PDB codes, grid coordinates, software versions, and literature reference Fig 4 – Docking Plot Data: Source data for the ACE vs. renin scatter plot and dual-target bar chart, including Pearson correlation statistics