shaker bottle comprising a container for storing a powder supplement

A shaker bottle (10, 20) comprising:

• a vessel (11) for retaining a liquid volume, the vessel (11) having a bottom (17) and an open top;
• a lid (12) for closing said vessel (11) at the open top;
• and
• a container (31) for storing a powder supplement,
• wherein
• the container (31) has a cylindrical shape with a bottom (42) and an open top that is closed by a lower surface (41) of the lid (12) when the container is arranged to means (40) fixed to the lower surface (41) and is releasably arranged to the means;
• and
• the container (31) comprises a protrusion (44) integrally made with the bottom (42), which faces the lower surface (41) of the lid (12);
• and
• the lid (12) comprises a webbing (43), which is arranged in abutment with the protrusion (44) of the container (31) when the container (31) is arranged to the means (40) of the lid (12), and a button (14) that is arranged on the webbing (43) and is protruding upwardly through a bore of the lid (12), the container (31) being released when the button (14) is pressed;
• and
• the vessel (11) is foldable for providing a folded state of the shaker bottle (10, 20), wherein the container (31) is received by the bottom (17) of the vessel (11) in the folded state when arranged to the means (40).