This disclosure generally describes comestible cell-based food products including a combination of cultured cells and dry cell powder and methods for preparing such cell-based food products. In one or more embodiments, the comestible cell-based food product comprises a mixture of cultured animal cells and dry cultured animal cell powder. For example, the comestible cell-based food product is produced by generating a homogenous mixture of cultured animal cells and dry cultured animal cell powder. In one or more embodiments, the dry cultured animal cell powder improves the texture of the resultant comestible cell-based food product by tailoring the hardness and/or adhesiveness of the comestible cell-based food product.

The invention provides compositions for producing hydrogen rich water, nutraceuticals, cosmetics, pharmaceuticals, and other products. In one embodiment, the invention provides a composition, e.g., a tablet, including magnesium metal, at least one water-soluble acid, and a binding agent. The magnesium metal and at least one water-soluble acid may be present in amounts sufficient to maintain a pH of less than 7, e.g., at a specific time period after reaction, and a concentration of at least 0.5 mM H.sub.2 after reaction in 50 mL water in a container e.g., a sealed or an open container, e.g., at least 0.5 mM H.sub.2 after reaction in 100 mL water or at least 0.5 mM H.sub.2 after reaction in 500 mL water. The composition may also include a lubricant.

The invention provides compositions for producing hydrogen rich water, nutraceuticals, cosmetics, pharmaceuticals, and other products. In one embodiment, the invention provides a composition, e.g., a tablet, including magnesium metal, at least one water-soluble acid, and a binding agent. The magnesium metal and at least one water-soluble acid may be present in amounts sufficient to maintain a pH of less than 7, e.g., at a specific time period after reaction, and a concentration of at least 0.5 mM H.sub.2 after reaction in 50 mL water in a container e.g., a sealed or an open container, e.g., at least 0.5 mM H.sub.2 after reaction in 100 mL water or at least 0.5 mM H.sub.2 after reaction in 500 mL water. The composition may also include a lubricant.