Tzatziki Sauce Nutrition & Calories (Dietary Guide)

A typical 2-tablespoon (about 30 g) serving of tzatziki has an estimated 38 calories, 2–3 g protein, 1–2 g carbohydrate, and 1–1.5 g fat. Exact values depend on the yogurt, olive oil, cucumber, and serving size. Measure your portion, count all added oil, and keep the sauce chilled at 40°F (4°C) or below.

Tzatziki is sometimes treated as a “free” dip because it is cool, tangy, and made with yogurt and cucumber. But calories still add up, especially when a generous scoop includes more sauce than you think or the recipe contains extra oil. A measured portion gives you a clearer picture without taking the sauce off the menu.

The figures below are estimates, not a nutrition label for every brand or homemade batch. For the most accurate count, use the package information for your ingredients, weigh what you eat, and calculate from the finished batch.

Ingredients, Portion Size & Nutrition Setup

Tzatziki is a chilled yogurt sauce commonly made with cucumber, garlic, lemon, herbs, and sometimes olive oil. Its nutrition depends most on the yogurt and the amount of oil used, while the portion you serve determines how much of the batch’s calories and nutrients you eat.

A useful reference portion is 2 tablespoons, or about 30 g. That is a measuring guide, not a guarantee that every spoonful weighs exactly 30 g. A kitchen scale gives the most reliable serving weight, especially if you are tracking calories closely.

Illustrative ingredients and estimated nutrition

The example recipe uses 245 g plain nonfat Greek yogurt, 100 g cucumber, 13.5 g olive oil, lemon juice, garlic, dill, and salt. Its estimated yield is about 1½ cups. The estimate for a 2-tablespoon portion is about 38 calories, with roughly 2–3 g protein, 1–2 g carbohydrate, and 1–1.5 g fat.

*Values are scaled from the 38-calorie reference serving. They are estimates, not lab-tested values.

These numbers can change with the yogurt brand, oil quantity, cucumber draining, and the batch’s final yield. Plain nonfat yogurt and full-fat yogurt do not have the same nutrition profile. Likewise, a tablespoon of oil contributes calories even when it is mixed into the sauce rather than poured on top.

For a batch-specific estimate, add the calories listed for every ingredient, including oil, then divide by the finished batch weight or by the number of measured portions. If your sauce weighs 360 g after mixing, for example, divide the total batch calories by 360 to estimate calories per gram, then multiply by the weight of your serving. Weighing the finished batch matters because cucumber liquid can change the yield.

How Many Calories Are in Tzatziki?

A 2-tablespoon serving is estimated at about 38 calories, but the number is not fixed across recipes or products. The best comparison uses the same serving weight and a nutrition label or recipe calculation that includes every ingredient.

The stated recipe is a guide, not a substitute for your own calculation. Ingredient labels differ, and a homemade sauce may yield more or less than 1½ cups. If you need a precise number, use the nutrition information on your yogurt and oil, measure the remaining ingredients, and divide the total by the finished batch weight.

What changes the calorie count?

• Yogurt choice: Compare the label for the exact plain yogurt you use. Fat level and brand can change calories and protein.
• Olive oil: Measure it rather than pouring by eye. Oil is a concentrated source of calories, so an unmeasured extra drizzle can shift the batch total.
• Serving size: A “scoop” can be much larger than 2 tablespoons. Weigh it or use a measuring spoon.
• Finished yield: Drained cucumber and the amount of liquid released affect how much sauce the recipe makes. A larger yield spreads the batch’s calories across more sauce; a smaller yield concentrates them.
• Add-ins: Extra oil or other ingredients should be included in the calculation.

Tzatziki made with Greek yogurt also provides protein, but the amount per serving depends on the yogurt and portion size. Use the package label and your own portion weight rather than assuming that all recipes provide the same protein.

Preparation, Chilling & Food-Safety Execution

Tzatziki needs no cooking: mix the ingredients in a clean, nonreactive bowl, then chill the covered sauce. Draining the cucumber helps limit watery texture and makes the finished yield easier to measure. Keep the sauce cold during storage and serving rather than leaving it out for an extended period.

1. Wash the cucumber and herbs. Grate the cucumber, then squeeze or drain it thoroughly. Excess liquid can thin the sauce and change the finished yield, which makes serving estimates less dependable.
2. Measure the ingredients. Weigh or measure the yogurt and cucumber, and measure the olive oil instead of estimating it by eye. Add lemon juice, garlic, dill, and salt as desired.
3. Mix in a clean bowl. Use glass, food-grade stainless steel, or food-grade plastic. Tzatziki is an acidic, chilled mixture; avoid reactive aluminum or unlined copper for preparation and storage.
4. Cover and refrigerate. Chill at 40°F (4°C) or below for at least 30 minutes so the flavors can blend. Do not heat the sauce.
5. Taste and portion. Recheck the lemon and salt before serving. For nutrition tracking, weigh the finished batch and your portion, or use a measured 2-tablespoon serving.

Draining cucumber is useful for more than texture. If the cucumber releases a lot of water, the sauce may weigh more or become thinner, so an estimated cup-based yield may not match your batch. Use the final batch weight or count measured servings for a more reliable estimate.

Storage, Handling & Leftover Care

Keep tzatziki covered in a refrigerator at 40°F (4°C) or below, and return leftovers promptly after serving. For food safety, discard the sauce if it has been unrefrigerated for more than 2 hours, or more than 1 hour when the surrounding temperature is above 90°F (32°C).

Use a clean utensil each time you serve the sauce. Dipping food directly into the storage container can introduce crumbs or other food, so portion some into a separate serving bowl when sharing. Return the main container to the refrigerator rather than leaving it on the table.

Common situations and what to do

The time limits are practical safety cutoffs, not a reason to keep the sauce out until the last minute. Serve a smaller amount and refill the bowl from the refrigerator if you expect a long meal.

Serving Ideas & Calorie-Conscious Pairings

Pairing tzatziki with vegetables, bread, or a meal changes the calories of the full plate, even though the sauce itself has not changed. Keep the sauce portion separate from the foods you dip so you can estimate both parts rather than counting the entire snack as one item.

For a quick comparison, measure 2 tablespoons of sauce first, then track the accompanying food using its own package or nutrition information. The sauce estimate does not include pita, crackers, vegetables, or anything else on the plate.

A simple way to make the estimate more dependable is to put your portion on the plate before eating, rather than dipping from a large shared bowl. If you take more, count the extra amount. This keeps the record honest without requiring you to avoid the foods you enjoy.

Frequently Asked Questions

These answers address common questions about tzatziki calories, portion size, ingredients, and safe handling. Use the 2-tablespoon estimate as a starting point, then adjust it to match your own recipe, product label, and measured serving.

How many calories are in 2 tablespoons of tzatziki?
A reference estimate is about 38 calories per 2 tablespoons (about 30 g). Recipes and brands vary, so use your ingredient labels for a more precise figure.

How many calories are in 1 tablespoon of tzatziki?
Using the reference estimate, 1 tablespoon is about 19 calories. This is a proportional estimate; weighing the portion is more reliable than assuming every tablespoon weighs 15 g.

Does olive oil increase tzatziki calories?
Yes. Count all olive oil added to the batch, even when it is mixed into the sauce. Measuring the oil helps you calculate the batch total.

How much protein is in a serving of tzatziki?
The estimated 2-tablespoon serving provides roughly 2–3 g of protein. The exact amount depends mainly on the yogurt and serving weight.

Is homemade tzatziki lower in calories than store-bought sauce?
Not always. Recipes and products use different yogurts and amounts of oil. Compare equal serving weights and check the product label or calculate your homemade batch.

Does cucumber change the calorie estimate?
Cucumber affects the sauce’s yield and texture. Its released liquid can make the finished sauce watery, so drain it and calculate from the finished batch weight for better portion estimates.

How should I measure a serving?
Use a measuring spoon for a quick estimate or weigh the sauce for the most reliable tracking. The reference serving is about 2 tablespoons, or 30 g.

Can tzatziki be heated?
It is intended to be served chilled. This guide’s preparation method does not heat the sauce; mix it, cover it, and refrigerate it.

How cold should tzatziki be stored?
Keep it refrigerated at 40°F (4°C) or below in a covered container. Return leftovers to the refrigerator promptly after serving.

How long can tzatziki sit out?
Discard it after more than 2 hours at room temperature, or more than 1 hour when the temperature is above 90°F (32°C).

(This article was written by one of our staff writers, Daniel M. Whitaker. Visit our Meet the Team page.)