Oxalate in your kidneys = stones, and eventually failure Oxalate in your urine = blood, and the worst pain in medicine Oxalate in your gut = calcium, iron and magnesium bound and gone Oxalate in your bones = fractures Oxalate in your marrow = anaemia that iron will not fix Oxalate in your joints = arthritis that looks like gout and is not Oxalate in your heart = an irregular heartbeat Oxalate in your eyes = vision loss Oxalate in your nerves = numbness and burning in the feet Oxalate in your skin = ulcers that will not heal Every one of those is a plant's defence doing to your calcium exactly what it evolved to do to a caterpillar. And unlike linoleic acid, which is at least essential, oxalate is required nowhere, by nothing. There is no deficiency, because it is not a nutrient. You carry no enzyme to break it down. Once it is in, the only way out is through the kidney, which is the organ it damages on the way past. A stone patient is told to stay under 50mg a day. Spinach carries 970mg per 100g.Oxalate in your kidneys = stones, and eventually failure
— Sama Hoole (@SamaHoole) August 10, 2026
Oxalate in your urine = blood, and the worst pain in medicine
Oxalate in your gut = calcium, iron and magnesium bound and gone
Oxalate in your bones = fractures
Oxalate in your marrow = anaemia that iron will not fix… pic.twitter.com/I7w21YTzQq
Have another look at what went in the smoothie this morning.
