Abstract: A shaker bottle comprising an open top lower vessel for retaining a liquid volume, an upper member releasably engaging and closing the open top lower vessel; the upper member including a liquid passage inlet in a bottom surface thereof connected to a closable port on an exterior of the upper member allowing liquid in the lower vessel to pass through the inlet and the closable port when the closable port is open and the upper member is closing the lower vessel; the upper member including a storage chamber suitable for receiving a powder supplement; the storage chamber including a releasable bottom member forming a seal with the storage chamber separating the storage from the lower vessel when the releasable bottom member is in with the storage chamber; the bottom member when released from the storage chamber being received in the lower vessel with the storage chamber being open to the lower vessel.

Abstract: A shaker bottle comprising an open top lower vessel for retaining a liquid volume, an upper member releasably engaging and closing the open top lower vessel; the upper member including a liquid passage inlet in a bottom surface thereof connected to a closable port on an exterior of the upper member allowing liquid in the lower vessel to pass through the inlet and the closable port when the closable port is open and the upper member is closing the lower vessel; the upper member including a storage chamber suitable for receiving a powder supplement; the storage chamber including a releasable bottom member forming a seal with the storage chamber separating the storage from the lower vessel when the releasable bottom member is in with the storage chamber; the bottom member when released from the storage chamber being received in the lower vessel with the storage chamber being open to the lower vessel.