8 Surprising High Oxalate Foods (And What to Reach For Instead)

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The foods you didn’t see coming

If you’ve spent any time learning about oxalates, you already know the big names: spinach, almonds, sweet potatoes, dark chocolate, swiss chard. The standard “avoid” list shows up in every blog post on the topic, and within the first week of reading about a low oxalate diet, you’ve probably internalized those eight or nine items.

This post is about the other ones.

The foods that don’t show up in the obvious places. The foods you’ve been eating because they’re considered healthy, or because they’re built into your daily ritual, or because nobody told you they were a problem. The foods that, when someone with oxalate sensitivity finally connects the dots, draw a quiet “oh, that’s why” reaction.

By the end of this post, you’ll have eight new items to add to your mental “limit or avoid” list, plus the swaps that work in their place. None of these are obscure. All of them are likely already in your kitchen or your daily routine. And all of them are quietly meaningful contributors to total oxalate burden if you’re not paying attention.

(If you want a complete printable list of high oxalate foods to avoid, plus the low oxalate alternatives organized for grocery shopping, our Quick Reference Chart gives you both at a glance.)

1. Sesame seeds and tahini

This is the surprise that catches people most off guard. Sesame seeds are tiny. They show up sprinkled on bagels, on hamburger buns, on roasted vegetables, on the edges of sushi rolls. Individually, each seed is a small thing.

But sesame seeds are concentrated². And when sesame is processed into tahini, the smooth seed paste that forms the base of most store-bought hummus, baba ghanoush, and many “healthy” salad dressings, the volume jumps significantly. A typical hummus serving can deliver several tablespoons of tahini, which means a meaningful oxalate dose in a snack that has been culturally branded as one of the cleanest things you can eat.

If hummus has been a regular feature of your snacking, lunches, or dinner plates, this is one of the highest-leverage swaps you can make. Switching from store-bought tahini-based hummus to a sun-butter-based version brings the oxalate load down dramatically while keeping everything you actually liked about hummus in the first place.

The swap: My Sun Butter Hummus recipe uses sun butter (sunflower seed butter) in place of tahini. Same creamy texture, same satisfying base of garbanzo beans, dramatically lower oxalate load. For sesame-topped baked goods, look for plain or poppy-seed versions instead.

2. Beets

Beets are perhaps the cleanest example of the “wellness inversion”, a food the modern health movement has elevated to “superfood” status that turns out to be one of the higher oxalate vegetables you can eat.

The numbers are striking. A single cup of cooked beets contains around 152 milligrams of oxalate, well over twice what a low oxalate diet allows for the entire day. That number puts beets in roughly the same category as almonds (122 mg per ounce) on a per-serving basis, even though beets feel intuitively like they should be safer than nuts.

The trouble is how beets show up in modern diets. Roasted beet salads. Beet juice as a “pre-workout.” Beet-based “energy” supplements. Beet powder stirred into smoothies. Pickled beets as a healthy condiment. For someone who’s been told beets are good for them and built any kind of regular beet habit, the oxalate load adds up quickly.

The swap: For sweetness in salads, use roasted butternut squash. For color and visual appeal, roasted red peppers or cherry tomatoes (in moderation). For the “earthy roasted root” slot on a plate, rutabaga is the go-to swap, and it’s covered in detail in our Sweet Potato and Oxalates post, since rutabaga handles double duty as both the sweet potato and the beet replacement.

3. Black tea, green tea, and matcha

This one tends to land hardest. For the millions of people whose mornings revolve around a cup of tea, learning that black tea, green tea, and matcha are all meaningful oxalate sources can feel like a betrayal.

The mechanism is concentration. Tea leaves are dense in oxalate to begin with, and the process of brewing, extracting compounds from the leaves into hot water, pulls the oxalate into your cup. Black tea is the highest of the common varieties, with multiple cups per day adding up fast for daily tea drinkers. Green tea sits at a moderate level. Matcha, because it involves consuming the powdered whole leaf rather than just the brewed extract, can deliver a particularly concentrated dose for a relatively small serving.

Chai, traditionally made with black tea as the base, falls into the same category. Bubble tea (boba), iced tea, kombucha made with black or green tea, all of these inherit the oxalate load of their tea base.

A specific warning about matcha lattes: This is one of the worst combinations in the modern wellness world for someone with oxalate sensitivity. The standard matcha latte at most cafés and made by most wellness influencers at home is matcha (concentrated whole-leaf oxalate) blended into almond milk (one of the highest-oxalate dairy alternatives at around 122 mg per ounce of almonds). Stacking the two together in a single drink creates an oxalate load that can be genuinely off the charts, easily several hundred milligrams in a single 12-ounce drink. If a daily matcha-with-almond-milk latte has been part of your morning ritual, this single habit alone may be a meaningful contributor to your symptoms. The fix isn’t just to swap the matcha; it’s to swap the almond milk too. (See our Almond Flour and Oxalates post for more on why almond milk specifically is one of the bigger hidden oxalate sources in modern wellness drinks.)

For someone who has been a daily tea drinker for years, particularly a black tea or matcha drinker, this single category alone can be a meaningful contributor to total oxalate burden, easily comparable to almonds or sweet potato as a daily source.

The swap: Rooibos tea is the cleanest direct swap. It’s caffeine-free, naturally low in oxalate, brews like a black tea, and pairs with milk and honey the same way. White tea is also significantly lower than black or green. Chamomile, peppermint (in moderation), ginger tea, and most other herbal teas are reliably low oxalate. If you’re a coffee drinker who’d been adding green tea or matcha for “extra antioxidants,” coffee on its own is moderate (not high) and is a cleaner choice on a low oxalate diet than the matcha you’ve been adding to it. And if matcha lattes have been your go-to, swap the almond milk for coconut milk or whole dairy milk regardless of what tea you settle on, that swap alone removes the worst of the double-stack problem.

4. Quinoa

Quinoa has had a remarkable cultural run, from obscure Andean grain to the default “healthy” carb in roughly fifteen years. It’s gluten-free, it’s high in protein, it’s been featured in every wellness publication, and it’s quietly become the rice replacement in countless health-conscious kitchens.

It’s also moderate to high in oxalate².

This is one of the foods where the wellness narrative most directly inverts the oxalate reality. The standard “healthy carbs” hierarchy for the last decade has been: white rice (bad) → brown rice (better) → quinoa (best). From an oxalate perspective, you’d actually want to walk that ladder back the other direction. White rice is reliably low oxalate, brown rice is slightly higher (the bran is where most of the oxalate concentrates), and quinoa is meaningfully higher still.

For people who have built quinoa into their daily eating, quinoa breakfast bowls, quinoa salads at lunch, quinoa as the default dinner starch, switching back to white rice can produce a surprisingly noticeable improvement in symptoms.

The swap: White rice is the everyday staple. Reliably low oxalate, neutral in flavor, endlessly versatile. Oats are the other reliable low oxalate grain, useful for breakfast, baking, and anywhere you’d want a softer, heartier texture. Between white rice and oats, you have most of the carb territory covered. Our How to Start a Low Oxalate Diet post has more on the carb swaps that make the biggest difference in the first week.

5. Soy products (tofu, tempeh, soy milk)

For vegetarians, vegans, and people who built their plant-based diets around soy as their primary protein, this one is a heavier conversation.

Soy products are moderate to high in oxalate. Tofu, tempeh, edamame, soy milk, soy protein isolate, soy-based “meat alternatives,” soy yogurt, all of them carry meaningful oxalate loads, and many of them are concentrated enough that daily consumption adds up to a real dietary issue.

The trickier part is that for people whose protein strategy depends on soy, removing it isn’t a simple swap. Tofu has been doing real work in their kitchens, protein density, calcium content (often fortified), texture variety, low cost. Pulling it out leaves a gap that needs to be filled deliberately.

The good news: there are paths through. The bad news: most of those paths involve eating more animal protein, which is a harder ask for committed vegetarians and may not be acceptable for ethical vegans.

The swap: For omnivores, the answer is straightforward, most of the protein slots that tofu was filling can be filled with chicken, beef, fish, eggs, or dairy. For lacto-ovo vegetarians, eggs and dairy can carry more of the protein load (cottage cheese and Greek yogurt are particularly useful, since they bring calcium with them, see Move 2 in our low oxalate meal plan framework for how that pairing works). For vegans, the workable options narrow considerably: garbanzo beans (lower oxalate than most legumes) are the strongest lean-on, with pumpkin seeds in small amounts. Vegan low oxalate eating is genuinely difficult and may require working with a knowledgeable practitioner, we’ll cover this in more detail in a future post.

6. Raspberries and blackberries

Most berries are reliably low oxalate, blueberries, strawberries (moderate), cranberries, blackcurrants. They’re some of the safest fruits in a low oxalate kitchen and show up across most of the recipes we recommend.

Raspberries and blackberries are the exception.

Both are meaningfully higher than blueberries, and both can be problematic if eaten as daily staples. The trouble is that raspberries and blackberries have all the visual and cultural cues of “healthy berry”, they’re brightly colored, they’re nutrient-dense, they’re sold in the same plastic clamshells as blueberries, and they’re typically used interchangeably in smoothies, yogurt bowls, and “healthy” desserts.

For someone whose breakfast routine has been a yogurt bowl with mixed berries every morning, the daily raspberry-and-blackberry contribution can be a quiet driver of total oxalate intake. Same for daily smoothie habits that pull from a frozen mixed-berry bag.

The swap: Blueberries are the everyday staple. Reliably low oxalate, widely available fresh and frozen, sweet enough to satisfy a berry craving without driving up your daily count. Strawberries are moderate, fine in normal portions, fine on a yogurt bowl or in a smoothie occasionally, but worth not overdoing. Cranberries (fresh, not concentrated juice) are reliably low. If you’ve been building “mixed berry” smoothies and bowls, switching to a “blueberry-only” pattern is one of the easier high-leverage moves.

7. Turmeric

This is one of the most disorienting items on this list, because turmeric has been so heavily promoted as an anti-inflammatory food. The wellness world has embraced turmeric for arthritis, joint pain, gut inflammation, and a dozen other complaints, many of the same complaints that, in some people, are actually being driven by oxalate burden.

The catch: turmeric is moderate to high in oxalate³.

For someone with oxalate sensitivity who’s been taking daily turmeric supplements or drinking daily turmeric lattes specifically to reduce joint pain or inflammation, there’s a real possibility that the turmeric is making things worse, not better. The exact thing they’re treating may be the thing they’re feeding.

A small pinch of turmeric in a curry once a week is unlikely to be a meaningful contributor to anyone’s total oxalate intake. The problem is the modern usage pattern, high-dose turmeric supplements, daily golden milk lattes, turmeric capsules taken with every meal, “anti-inflammatory” smoothies built on a turmeric base. At those volumes and frequencies, turmeric stops being a culinary spice and starts being a meaningful daily oxalate source.

A specific warning about golden milk lattes: Same problem as the matcha-with-almond-milk situation. Most golden milk recipes online call for turmeric blended into almond milk, which means stacking a high-oxalate spice with one of the highest-oxalate dairy alternatives. A daily golden milk made with almond milk is one of the worst combinations someone with oxalate sensitivity could choose, even though it has been marketed for years as a healing nightly ritual. If golden milk has been part of your routine, the same fix applies as with matcha lattes: swap the almond milk for coconut milk or dairy milk, and consider whether you actually need the turmeric at all.

The swap: If you’ve been using turmeric specifically for its healing properties, anti-inflammatory effects, joint support, antioxidant support, turmeric extract in supplement form is a viable alternative. The extraction process pulls out the curcumin (the active compound everyone is actually after) without the oxalate load that comes with consuming whole turmeric root or powder. This is the same logic we apply to cinnamon on this blog: ground cinnamon is high oxalate and not acceptable, but cinnamon extract gives you the flavor (or in the case of curcumin, the active benefit) without the oxalate concern. Talk with a knowledgeable practitioner about a turmeric extract or curcumin supplement that’s right for your situation.

For flavor and color in cooking, paprika (sweet, not smoked) is a clean low oxalate alternative for the warm-yellow-orange tones turmeric brings. For golden milk specifically, most people doing daily golden milk are using it as a sleep ritual or a wellness ritual, warm coconut milk with honey, vanilla, and a small pinch of nutmeg covers most of the same emotional and sensory territory without the turmeric load.

8. Chocolate

Chocolate is the entry on this list that’s least surprising for many readers, most people who’ve researched oxalates at all know dark chocolate is high, but it earns its spot here for two reasons.

First, the spectrum is wider than most people realize. Cocoa powder is the most concentrated form, followed by dark chocolate, then milk chocolate, then white chocolate (which contains no cocoa solids and sits in a completely different category, it’s actually a workable treat option, with caveats). This means a brownie made with cocoa powder and a chocolate-covered almond aren’t equivalent loads, and a cup of hot cocoa and a small piece of milk chocolate aren’t equivalent either.

Second, chocolate hides in places people don’t expect. Mocha drinks. Chocolate protein powder. Chocolate-flavored “healthy” snack bars. Cocoa-dusted “raw” energy balls. Chocolate-flavored almond milk. Chocolate-flavored Greek yogurt. Chocolate-covered almonds and dark chocolate trail mix combinations (which stack two high-oxalate foods on top of each other). For someone with a low-grade chocolate-everything pattern through their week, the cumulative oxalate from “just a little chocolate” across many small servings can be one of the biggest hidden drivers of total intake.

For most people on a low oxalate diet, the workable approach is: cocoa powder, dark chocolate, milk chocolate, and anything containing them are off the everyday list. White chocolate is the one exception, Lily’s white chocolate chips specifically are the brand we recommend, and we go through the why and how in the Low Oxalate Snacks post.

The swap: For the chocolate-craving moment, a small handful of Lily’s white chocolate chips is the clean answer, see our snacks post for the full conversation. For mocha drinkers, a vanilla latte or a caramel latte fills the same flavor slot without the cocoa. For “I want a baked good with chocolate flavor,” white chocolate chips folded into a cookie or muffin batter can carry the experience. For protein powders, look for plain (vanilla or unflavored) versions and skip the chocolate flavors.

We have a full deep-dive on this topic in our [Chocolate and Oxalates] post, if chocolate has been a meaningful part of your eating habits, that’s the next post to read.

A quick summary, in one place

Eight surprising high oxalate foods, and the swaps that work in their place:

• Sesame seeds and tahini → sun butter, sun-butter-based hummus, plain or poppy-seed baked goods
• Beets → roasted butternut squash, rutabaga, roasted red peppers
• Black tea, green tea, matcha → rooibos, white tea, chamomile, peppermint, ginger tea, plain coffee (and never with almond milk)
• Quinoa → white rice, oats
• Soy products → animal proteins for omnivores; eggs/dairy for vegetarians; garbanzo beans and pumpkin seeds for vegans
• Raspberries and blackberries → blueberries, strawberries (moderate), fresh cranberries
• Turmeric → turmeric extract / curcumin supplement for healing properties; paprika (sweet) for color in cooking; warm coconut milk with vanilla and nutmeg for golden-milk rituals
• Chocolate → Lily’s white chocolate chips for chocolate cravings; vanilla or caramel for mocha drinkers

Print this list, put it on the fridge, take it to the grocery store. Most people don’t realize how many of these foods they’re eating until they see them all in one place.

Why these foods slipped past you

If you’re feeling a little blindsided, “I’ve been eating most of this list daily for years”, here’s the honest reason this happens:

The wellness conversation about food has been dominated by other framings for decades. Anti-inflammatory diets. Gluten-free diets. Plant-based diets. Mediterranean diets. Paleo. Keto. Whole30. Each of these has its own list of “healthy” foods, and the lists overlap in places that happen to be high oxalate: nuts and seeds, leafy greens, ancient grains, “superfoods” like beets and turmeric, plant-based proteins like soy.

The oxalate conversation has been quietly happening in a different room, mostly among kidney stone patients, autism researchers, vulvodynia sufferers, and chronic pain communities. It hasn’t crossed over into mainstream wellness in a meaningful way. So if you’ve been eating “healthy” by mainstream wellness standards for the last ten years, there’s no particular reason you would have known that several of those healthy foods were quietly contributing to symptoms.

You haven’t been doing anything wrong. You’ve been working with information that was missing a key piece. Now you have the piece.

What to do this week

If reading this post made you realize you’ve been eating several of these foods regularly, here’s the simplest version of how to act on it:

1. Identify your top one or two surprises. Of the eight foods above, which ones are actually in your daily or weekly rotation? Don’t worry about the ones you rarely eat. Focus on the high-frequency ones.

2. Do one swap this week. Just one. The daily black tea → rooibos swap. The daily quinoa → white rice swap. The mixed-berry yogurt bowl → blueberry-only yogurt bowl. Pick one, make the change, see how it lands.

3. Pair calcium with meals. Calcium binds oxalate in the gut and reduces absorption. Even before you swap anything, eating cheese with lunch and drinking milk with dinner does meaningful work behind the scenes. This is the single highest-leverage habit you can layer in alongside any swap.

4. Don’t try to swap everything at once. This is the most important rule for anyone reading a “surprising foods” list. Cutting eight foods cold turkey can trigger oxalate dumping, a release of stored oxalate that can temporarily worsen symptoms. Reduce gradually. Let your body recalibrate at each stage. The diet works either way; rushing it just makes the early weeks harder than they need to be.

If you’ve been a heavy consumer of any of these foods for years, you may experience some dumping symptoms in the weeks after reducing them, pain flares, brief return of symptoms, mood shifts, sandy or gritty stool. This isn’t the diet failing you. It’s your body finally processing what’s been stored. Slow down, hydrate, and let it ride.

The bigger reframe

The eight foods on this list have something in common: each of them got culturally enshrined as healthy without anyone asking the more specific question of “healthy for whom, and in what quantities.”

Beets are healthy, for someone who isn’t oxalate-sensitive, eating them occasionally. Turmeric is healthy, for someone using it as a culinary spice, not a daily supplement at gram-level doses. Quinoa is healthy, for someone who can absorb the protein without the oxalate load creating a new problem. Soy products are healthy, for someone whose gut isn’t already inflamed by oxalate exposure.

The oxalate framework doesn’t say these foods are bad. It says they’re not the right fit for your body, in your current state, in the volumes and frequencies the wellness world has been telling you to eat them.

That’s a meaningful distinction. It’s also a freeing one. You don’t have to argue with anyone about whether quinoa is healthy. You just have to know whether it’s working for you.

If you want a complete printable list of high oxalate foods to avoid plus the low oxalate alternatives organized for grocery shopping, our Quick Reference Chart below is exactly that. And the 7-Day Beginner’s Guide gives you a full week of meals built around the foods that work, not the ones that don’t.

Frequently Asked Questions About Surprising High Oxalate Foods

What healthy foods are surprisingly high in oxalate?

The biggest surprises are sesame and tahini, beets, black and green tea, quinoa, soy, raspberries and blackberries, turmeric, and chocolate. They are usually eaten daily as health foods, which is exactly what makes them sneaky.

Is quinoa high in oxalate?

Quinoa is moderate to high in oxalate, so a large daily serving adds up fast. Smaller portions paired with calcium work for some people, while white rice is a reliably low swap.

Is turmeric high in oxalate?

Yes. Turmeric is mostly soluble oxalate and has been shown to raise urinary oxalate, so daily turmeric supplements or lattes can be a hidden driver for sensitive people.

Is tea high in oxalate?

Black tea, green tea, and matcha are all significant oxalate sources, especially brewed strong or consumed in large daily amounts. Herbal teas like peppermint or rooibos are lower options.

What can I eat instead of these high oxalate foods?

Good swaps include sunflower or pumpkin seed butter for tahini, white rice for quinoa, rooibos or herbal tea for black and green tea, and carob for chocolate. Each section above gives the specific swap.

Read These Next

• The High Oxalate Foods List, The complete reference, every food worth knowing about, not just the ones that tend to surprise people.
• The Low Oxalate Foods List: What You Can Actually Eat (And Enjoy), What to reach for instead, a full list organized by how freely you can include each item.
• Why Spinach Makes You Feel Terrible (And Why It’s Not in Your Head), A deeper look at one food that catches almost everyone off guard, and the science behind why it causes problems.

Sources

1. University of Chicago Kidney Stone Program. How to Eat a Low Oxalate Diet (high oxalate foods reference). kidneystones.uchicago.edu
2. Chai W, Liebman M. Oxalate content of legumes, nuts, and grain-based flours (sesame seeds and quinoa). Journal of Food Composition and Analysis. 2005;18:723 to 729. sciencedirect.com
3. Tang M, Larson-Meyer DE, Liebman M. Effect of cinnamon and turmeric on urinary oxalate excretion in healthy subjects. American Journal of Clinical Nutrition. 2008;87(5). pubmed.ncbi.nlm.nih.gov

The information on this site is for educational purposes only and is not intended as medical advice. Oxalate sensitivity and related conditions vary significantly between individuals. Always consult your healthcare provider before making significant dietary changes or starting any supplementation, especially if you have kidney disease, a history of kidney stones, or any other diagnosed health condition. Read our full medical disclaimer for more information.