Researchers have discovered that the structure of spinach leaves could be key to the production of laboratory-grown meat. By removing the cell contents and leaving only the skeleton, the leaf's vascular system can support the growth of bovine satellite cells, making them 99% viable after two weeks. This finding could speed up the process of laboratory meat production and offer an environmentally friendly, cost-effective solution. However, more research is needed to incorporate other cells that contribute to texture and taste.