Blueberries Valheim 1.0.20
Blueberries is a food that gives 8 health, 25 stamina for 10 min.
“Tiny but tasty.”
Blueberries are a Food item, described in the game as "Tiny but tasty." They are first available in the Black Forest. Eating them gives 8 health and 25 stamina, with a regeneration of 1 per tick, and the effect lasts 10 minutes. Each one weighs 0.1, a stack holds up to 50, and they can be teleported.
Blueberries are an ingredient in several recipes: Patterns of the Bear, Loincloth of the Bear, Deer Stew, Blue Fireworks, Mead base: Ratatosk, Mead Base: Minor Healing, Mead Base: Tasty, Pancakes, Pulled Bear and Queen's Jam. They are also used to build the Blue Banner, the Blue, Red and White Banner, the Purple Banner and the White and Blue Striped Banner.
Found in the world
It is placed in the world by the world generator: see where to find Blueberries.
Used to craft
Blue Fireworks, 
Deer Stew, 
Loincloth of the Bear, 
Mead Base: Minor Healing, 
Mead base: Ratatosk, 
Mead Base: Tasty, 
Muckshake, 
Pancakes, 
Patterns of the Bear, 
Pulled Bear, 
Queen's Jam.
Used to build
Blue Banner, Blue, Red and White Banner, Blueberries, Purple Banner, White and Blue Striped Banner.
Other food items
Ashlands Gourmet Bowl, 
Baked Poteitr, 
Black Forest Buffet Platter, 
Black Soup, 
Blood Pudding, 
Blue Mushroom, 
Boar Jerky, 
Bread, 
Carrot, 
Carrot Soup, 
Cloudberries, 
Cooked Asksvin Tail.