Extra weight puts stress on the joints. There is no evidence that any particular food will stop bleeding episodes or form blood clots. Tape or glue foam pads to the sharp edges of counters and coffee tables. Or better yet, remove coffee tables while your child is learning to walk. Foam padding on walkers will help protect elbows.
Gates blocking stairs are a good way to avoid falls.
Netted crib covers assist in avoiding falls out of bed. Place non-skid strips on the floor of the shower or bathtub. Help your child in and out of the tub until the child is old enough to manage without falling. Sew padding into the knees and seat of your toddler's pants to reduce bruising. Make sure your toddler wears shoes to protect his feet.