Koken Shokutore Protein, 1 bag Expiration Date: 2027.04 Plus, 11 loose pieces The expiration date for these items is unknown. These are products that weren't finished by summer, so I believe the date is in the latter half of 2026. My son, who retired this summer, didn't finish these, so I'm offering them. My son, who was skinny, gained 19kg after joining the high school baseball team! He's become incredibly muscular compared to when he first joined the team. It's good to drink this immediately after exercise! Please give it a try!!