Calcium absorption from spinach: about 5% due to oxalates.
— Sama Hoole (@SamaHoole) October 13, 2025
Calcium absorption from dairy: 30-35%.
You'd need to eat 16 cups of spinach to get the bioavailable calcium in one glass of milk.
Nutritional databases don't tell you this.
GET NUTRITION FROM FARM-DIRECT, CHEMICAL-FREE, UNPROCESSED ANIMAL PROTEIN. SUPPLEMENT WITH VITAMINS. TAKE EXTRA WHEN NECESSARY
Sunday, October 12, 2025
SAMA HOOLE: Calcium absorption from spinach: about 5% due to oxalates. Calcium absorption from dairy: 30-35%.
Sunday, September 21, 2025
SAMA HOOLE: Superfoods with the highest oxalate content
The superfoods with the highest oxalate content:
— Sama Hoole (@SamaHoole) September 21, 2025
Spinach: 750mg per cup
Rhubarb: 860mg per cup
Beets: 250mg per cup
Nuts: 200mg per serving
A "safe" daily limit is 40-50mg.
One spinach salad = 15 days worth of oxalates.
Maybe avoid these if you don't like kidney stones.
Was Popeye the Sailor man trying to give us kidney stones?
Tuesday, July 8, 2025
DR. KEN BERRY: Kidney stones, 80% of the time, 85% of the time, they are calcium oxalate stones. Where do you get oxalates from? Plants.
Plant-based diet is the last diet you want to eat https://t.co/Dn6Kly6Z7J
— Wejolyn πΊπΈ (@Wejolyn) July 8, 2025
Kidney stones, 80% of the time, 85% of the time, they are calcium oxalate stones. Where do you get oxalates from? Plants. You can actually look up on the internet "give me a list of high oxalate foods," and it'll give me the top 20. They're all plants. So many people when they have a kidney stone, their doctor tells them, "Oh, you got to quit eating meat. Don't drink milk. You got to eat a plant-based diet." That's literally the worst advice on planet Earth. If you've had a kidney stone in the past, a plant-based diet is the last thing you want to be eating because that's going to increase the odds that you'll have another kidney stone because most kidney stones by far and away are oxalate stones. Oxalates come from plants. --Dr. Ken Berry
Saturday, December 28, 2024
PAUL SALDINO: plant defense chemicals cause problems for some people. Oxalates in spinach certainly contribute to kidney stones
Should you eat vegetables? pic.twitter.com/u4jkhYMvbF
— Paul Saladino, MD (@paulsaladinomd) December 28, 2024
Kale is b*******. Let me explain it to you. These are plant leaves. They're vegetables. Vegetables are the leaves, the stems, the roots, and the seeds of plants. These parts of plants contain defense chemicals. This is not opinion; this is scientific fact. But here's the deal: these plant defense chemicals cause problems for some people. Oxalates in spinach certainly contribute to kidney stones in a lot of people with calcium oxalate kidney stones. Chard also has a ton of oxalates. If you're not getting enough iodine in your diet, the isothiocyanates, which are iodine-blocking at the level of the thyroid in this kale, could potentially lead to thyroid problems. In my case, cutting out vegetables was a key component of figuring out what was triggering my eczema. So, if you're thriving, don't change anything about your diet. But if you're not, it's time to question your nutritional assumptions. Vegetables are much better than junk food, but they're not benign for everyone.
Thursday, May 16, 2024
OXALATES: Plants make it for their own survival. We have a great faith in plants being safe to eat. Plants are trying to kill you.
An excellent podcast on oxalates. If you have all sorts of weird, body, aches, and pains and strange things that no one can figure out, you need to listen to this podcast ππΌ(Weston A Price) pic.twitter.com/QwIfs3LKdx
— Wejolyn πΊπΈ (@Wejolyn) July 11, 2023
The hazard: oxalic acid and phytic acid block the absorption of magnesium.
Oxalic acid found in rhubarb, spinach, chard and phytic acid found in cereal grains, seeds, legumes and soy block absorption of magnesium.
Toxic Superfoods: How Oxalate Overload Is Making You Sick--and How to Get Better https://t.co/QnjQQi0wTd via @amazon
— St. Michael, the Archangel (@aveng_angel) May 17, 2024
Wednesday, August 2, 2023
If cashew acids do this to your skin, imagine what they do to your gut microbiome
The toxin that is destroying their fingers is called oxalate. It's also connected to cancers, nephropathy, autoimmune conditions, damaged eye sight, and numerous other ailments.
— Inversionism (@Inversionism) August 2, 2023
Human beings are not supposed to eat improperly prepared nuts. Every culture in antiquity that did… https://t.co/ZJFHiR2ZM6
Wejolyn writes,
Nuts are a scam. There’s no way indigenous people ate hundreds of nuts the way people do today. The damaging aspects here- the skin and the acids from these cashews. Even if nuts are soaked & sprouted for digestion- they still do not digest & eliminate well. I see them daily -… https://t.co/8PXHHaRK4B. Wejolyn πΊπΈ (@Wejolyn) August 2, 2023
Monday, December 15, 2014
10 FOODS PROVEN TO TRIGGER KIDNEY STONES
2. Rhubarb
On oxalates, the verdict is still out:
The formation of kidney stones containing oxalate is an area of controversy in clinical nutrition with respect to dietary restriction of oxalate. About 80% of kidney stones formed by adults in the U.S. are calcium oxalate stones. It is not clear from the research, however, that restriction of dietary oxalate helps prevent formation of calcium oxalate stones in individuals who have previously formed such stones. Since intake of dietary oxalate accounts for only 10-15% of the oxalate that is found in the urine of individuals who form calcium oxalate stones, many researchers believe that dietary restriction cannot significantly reduce risk of stone formation.
In addition to the above observation, recent research studies have shown that intake of protein, calcium, and water influence calcium oxalate affect stone formation as much as, or more than intake of oxalate. Finally, some foods that have traditionally been assumed to increase stone formation because of their oxalate content (like black tea) actually appear in more recent research to have a preventive effect. For all of the above reasons, when healthcare providers recommend restriction of dietary oxalates to prevent calcium oxalate stone formation in individuals who have previously formed stones, they often suggest "limiting" or "reducing" oxalate intake rather than setting a specific milligram amount that should not be exceeded. "Reduce as much as can be tolerated" is another way that recommendations are often stated.
Aspartame, which exists in a few artificial sweeteners, is the worst food you can put into your system. Find out why.
4. Meat
6. Salt
7. Carbonated Drinks