Spinach’s calcium isn’t well absorbed due to its oxalate content, but if it were paired with food like kale, would it interfere with the body’s absorption of kale’s calcium?
Yes. The people who suffer from oxalate disease chug milk, because it interferes with oxalate getting absorbed from other sources.
They also take magnesium pills before meals
There are lots of high calcium foods you haven’t thought of. Strawberries are a high calcium fruit. A tablespoon of flax per day contributes to high calcium levels.
Yes. That’s why you should eat varied and not always make the same combinations.
In that sense it’s not a problem you sometimes get little calcium from your dish with spinach, as long as you get more bioavailability at other times.
Look what I found:
The Truth About Dietary Oxalates
In fact, peer-reviewed research reveals that the ability of oxalates to lower calcium absorption is small and does not outweigh the ability of those foods to contribute significant calcium to the diet since spinach is rich in calcium.
A few rare health conditions require oxalate restriction: absorptive hypercalciuria type II, enteric hyperoxaluria, and primary hyperoxaluria. These are not the more common condition wherein kidney stones are formed.
The research is not clear that restricting foods such as spinach helps prevent stones in those who have previously had them. Many researchers believe that dietary restriction cannot reduce the risk of stone formation.
In fact, some foods that were assumed to increase stone formation because of oxalate content (like black tea) have appeared in more recent research to have a preventative effect.
Honestly you’re missing the forest in the trees. Unless you’re eating a stupid amount of spinach it shouldn’t impact calcium absorption in any meaningful aspect. The amount of oxalate in spinach is very tiny, nothing to worry about.
Yes. Honestly man if you’re gonna eat vegetables, I would cut out leafy greens asap. Pretty little nutritional content with tons of oxalates and they’re pretty harmful for the kidneys and liver. Stick to red meat, liver, eggs, high quality milk if you tolerate dairy, and if you RLY want to up your calcium intake, grind up some egg shells into powder at eat that. Plants not only interfere with micronutrient absorption, but they also don’t have much to offer.