Are Collard Greens High In Oxalates

Collard greens are high in oxalates.
 
That’s the short answer, and it’s an important one if you’re watching your oxalate intake for kidney health or other reasons.
 
If you’ve been asking “are collard greens high in oxalates,” you’re not alone, because plenty of people love this leafy green and want to know where it stands.
 
The good news is that while collard greens do contain oxalates, they’re generally considered a moderate source rather than one of the highest.
 
In this post, we’ll take a closer look at whether collard greens are high in oxalates, how they compare to other greens, and what you can do to enjoy them safely.
 
Let’s get into it.
 

Are Collard Greens High in Oxalates?

Collard greens are high in oxalates compared to some foods, but they sit in the moderate range when stacked against the biggest offenders.
 
Here’s what you need to know about the oxalate content in collard greens.
 

1. Collard Greens Contain a Moderate Amount of Oxalates

A typical serving of cooked collard greens contains roughly 10 to 30 milligrams of oxalates per half cup.
 
That’s far lower than spinach, which can pack over 600 milligrams per serving.
 
So while collard greens are high in oxalates in the sense that they do contain them, they’re not in the same league as spinach, rhubarb, or beet greens.
 

2. The Oxalate Levels Depend on How You Cook Them

Here’s a cool fact: how you prepare collard greens affects their oxalate content.
 
Boiling collard greens and discarding the water can reduce oxalates significantly.
 
That’s because oxalates are water-soluble, so they leach out into the cooking liquid.
 
So if you’re worried about whether collard greens are high in oxalates, boiling them is a smart move.
 

3. Raw Collard Greens Have More Oxalates Than Cooked

Raw collard greens contain more oxalates than cooked ones simply because cooking and draining removes some of them.
 
If you enjoy collard greens in smoothies or salads, keep that in mind.
 
For most people, this isn’t a problem, but if you’re on a low-oxalate diet, cooking is the way to go.
 

4. Portion Size Plays a Big Role

Even though collard greens are high in oxalates to a moderate degree, the amount you eat matters.
 
A small serving won’t deliver a huge oxalate load.
 
But if you’re eating collard greens every single day in large amounts, the oxalates can add up.
 
Balance is key here.
 

How Collard Greens Compare to Other High-Oxalate Foods

To really understand whether collard greens are high in oxalates, it helps to see how they stack up against other foods.
 

1. Spinach Is the Oxalate King

Spinach is famously high in oxalates, often containing 600 to 800 milligrams per cooked cup.
 
Collard greens don’t come close to that.
 
So if you’re avoiding spinach because of oxalates, collard greens can be a gentler alternative.
 

2. Rhubarb and Beet Greens Are Also Up There

Rhubarb and beet greens are both very high in oxalates.
 
Collard greens are high in oxalates but on a much smaller scale.
 

3. Kale and Bok Choy Are Lower

Kale and bok choy contain fewer oxalates than collard greens.
 
So if you’re really sensitive to oxalates, those might be better picks.
 

4. Collard Greens Sit in the Middle Ground

When you look at the full spectrum, collard greens land somewhere in the middle.
 
They’re not the worst offender, but they’re not the lowest either.
 
That’s why the question “are collard greens high in oxalates” gets a “yes, but moderately” kind of answer.
 

Who Should Watch Their Oxalate Intake?

If you’re wondering whether collard greens are high in oxalates because of a health condition, you’re asking the right question.
 

1. People Prone to Kidney Stones

Oxalates can contribute to calcium oxalate kidney stones, the most common type.
 
If you’ve had kidney stones before, your doctor may suggest limiting high-oxalate foods.
 
Collard greens are high in oxalates enough to matter for some people, but they’re usually allowed in moderation.
 

2. People with Gut Absorption Issues

Conditions like Crohn’s disease or leaky gut can increase oxalate absorption.
 
In those cases, being mindful of collard greens and other oxalate sources is wise.
 

3. Anyone on a Low-Oxalate Diet

If your doctor has put you on a low-oxalate diet, you’ll want to know that collard greens are high in oxalates compared to some veggies.
 
But they’re often still allowed in small, well-cooked portions.
 

4. People Taking Certain Medications

Some medications can increase oxalate levels or kidney stone risk.
 
If that’s you, talk to your healthcare provider about whether collard greens fit your diet.
 

How to Enjoy Collard Greens While Managing Oxalates

Even if collard greens are high in oxalates, you don’t have to give them up entirely.
 
Here’s how to enjoy them smartly.
 

1. Boil and Drain Them

Boiling collard greens and tossing the water removes a good chunk of oxalates.
 
This simple step makes a big difference.
 

2. Pair Them with Calcium

Calcium binds to oxalates in the gut, which can reduce absorption.
 
So enjoy your collard greens with a calcium-rich food like cheese, yogurt, or fortified plant milk.
 

3. Drink Plenty of Water

Staying hydrated helps dilute oxalates in your urine.
 
That lowers the risk of crystals forming.
 

4. Don’t Overdo It

Variety is your friend.
 
Rotate your greens so you’re not eating collard greens every single day if oxalates are a concern.
 

So, Are Collard Greens High in Oxalates?

Collard greens are high in oxalates, but only in the moderate range.
 
They contain far less than spinach, rhubarb, or beet greens.
 
How you cook and portion them makes a real difference in how many oxalates you actually consume.
 
And for most people, collard greens can still be part of a healthy, balanced diet.
 
Just boil, drain, pair with calcium, and enjoy in moderation.
 
Hope this post has helped you understand where collard greens stand when it comes to oxalates.