Try Grapefruit. Eat or squeeze 1 a day and it will almost certainly lower H&H. I wasted hundreds of dollars on that crap Hemoflow product thinking it would keep me in check, 6 months straight I ran it and my hematocrit was 54.3 while well hydrated. My urologist wasn’t happy and thankfully allowed me to donate blood and recheck. Fast forward 6 months later I drank fresh squeezed grapefruit juice every day for 2 months straight and my hematocrit was 45.9! Google grapefruit and hematocrit and you’ll see the study. They took 42 people with hematocrit ranging from 39-55 and supplemented a 1/2-1 grapefruit a day for 2 months straight, Everyone came back 38-49 following blood work. It had its greatest effects on those with higher hematocrit values. Just make sure to check contraindications as there’s an enzyme in grapefruit that can delay or increase the effect of certain drugs within the body. Especially nitrates for chest pain and ED drugs. Grapefruit literally costs me 6.99/week for the organic stuff. Urologist is happy and so am I.