Prosthetic foot with distributed stress

A prosthetic foot comprising:

• a spring component;
• and
• a sole component,
• wherein the spring component comprises two or more stacked beam elements, each beam element including, along the length of the respective beam element, a first portion and a second portion, wherein the second portion of the beam element includes an extent with a length-varying width, wherein the respective beam elements are fixed to each other and to the sole component at the first portions of the respective beam elements, and the second portions of the respective beam elements are laterally movable with respect to each other when the spring component deflects, and wherein the summed width of the two or more stacked beam elements increases approximately linearly from a second end of the spring component to a first end of the spring component, wherein the two or more stacked beam elements are flat plates.