Soybeans can be used as forage if harvested early, with soybean hay and silage historically serving as alternatives to alfalfa. Research shows modern soybeans have similar protein and fiber levels to alfalfa, though fat content increases as seeds mature. Harvesting before seed development is recommended to avoid high fat and stem waste. If late harvesting is necessary, ensiling is preferred to reduce waste. Avoid harvesting after leaf loss, as this reduces nutritional value.