Celery has a very low glycemic impact, but a precise glycemic index (GI) score is not well established because celery is rarely tested on its own in standardized studies. This crisp celery salad pairs sliced stalks with apple, walnuts, lemon, and a light yogurt dressing for a practical way to serve the vegetable; its fiber and crunchy texture make it satisfying alongside a meal.
GI describes how quickly a carbohydrate-containing food may raise blood glucose compared with a reference food. Celery contains very little digestible carbohydrate per serving, so its effect is generally small, but that does not make a specific GI number reliable or meaningful for every person. The salad below is a recipe, not a treatment for blood sugar concerns.
Ingredients
- 6 medium celery stalks, leaves reserved if fresh, thinly sliced (about 3 cups / 300 g)
- 1 medium crisp apple, cored and thinly sliced (about 1 cup / 150 g)
- 1/3 cup walnut halves, roughly chopped (35 g)
- 1/4 cup plain unsweetened Greek yogurt (60 g)
- 1 tablespoon extra-virgin olive oil (15 ml)
- 1 tablespoon fresh lemon juice (15 ml)
- 1 teaspoon Dijon mustard (5 g)
- 1/4 teaspoon fine salt (1.5 g), plus more to taste
- 1/8 teaspoon freshly ground black pepper (about 0.3 g)
- 2 tablespoons chopped fresh parsley (about 8 g)
Instructions
- Rinse the celery and parsley under cool running water and dry them well. Trim the celery ends, remove any coarse strings with a vegetable peeler if needed, and slice the stalks thinly on a slight diagonal. Chop a few clean celery leaves to use with the parsley.
- Core the apple and slice it thinly. For a less browned salad, do this just before dressing, or toss the slices with a little of the measured lemon juice. Keep the slices roughly similar in thickness to the celery so the salad is easy to eat.
- In a small bowl, whisk together the Greek yogurt, olive oil, lemon juice, Dijon mustard, salt, and pepper until smooth. If the dressing seems too thick to coat the ingredients, whisk in 1 teaspoon (5 ml) cold water at a time, up to 1 tablespoon (15 ml).
- Put the celery, apple, walnuts, parsley, and any reserved celery leaves in a large serving bowl. Add the dressing and toss until lightly coated. Taste and adjust the salt, pepper, or lemon juice.
- Serve promptly for the crispest texture. If preparing ahead, keep the dressing separate and toss it with the salad shortly before serving.
Tips
- Choose crisp celery: Firm, unlimp stalks give the salad its best crunch. If the stalks are stringy, peel only the outermost fibers rather than removing too much of the vegetable.
- Keep the apple bright: Lemon juice slows browning, but it will not prevent it indefinitely. Cut the apple close to serving time for the freshest appearance.
- Adjust the dressing gradually: Yogurt thickness varies by brand. Add water a teaspoon at a time rather than making the dressing runny; it should cling lightly to the celery.
- Make it nut-free: Leave out the walnuts and use roasted pumpkin seeds if suitable for your table. Keep in mind that seeds may also be unsuitable for some allergies, so check with guests.
Serving Suggestions
Serve this salad as a crisp side with roast chicken, baked fish, lentil soup, or a grain bowl. It also works as a lunch component with whole-grain bread and a portion of beans, cheese, or another protein. For a more substantial salad, increase the celery and apple slightly and serve it over tender greens, adding dressing only when ready to eat.
The lemony yogurt dressing is intentionally light rather than sweet. If you want a richer plate, add a few shavings of hard cheese or a spoonful of cooked grains. These additions change the meal’s carbohydrate and energy content, so the overall effect depends on the full serving and what accompanies it—not on celery alone.
Variations
- Use pear: Replace the apple with one firm pear (about 150 g). It gives a softer, sweeter fruit flavor; choose one that is ripe but still holds its shape.
- Make it dairy-free: Swap the Greek yogurt for an unsweetened, plain plant-based yogurt. Choose a thick variety and check its label, since texture and ingredients differ.
- Add herbs: Replace the parsley with chopped dill or mint, or combine a small amount of each. Use fresh herbs for the cleanest flavor.
- Toast the walnuts: Toast them in a dry skillet over medium-low heat for about 3–5 minutes, stirring frequently, until fragrant. Cool completely before adding so they stay crisp and do not warm the dressing.
Storage and Reheating
This salad is best just after tossing. For make-ahead preparation, refrigerate the sliced celery and parsley in an airtight container and store the dressing separately; keep the cut apple separate too, or coat it with lemon juice. Refrigerate all prepared ingredients within 2 hours. The components are best used within 2 days, although celery may soften and apple may brown over time.
Once dressed, cover and refrigerate leftovers promptly. For food safety, discard perishable food left at room temperature for more than 2 hours, or more than 1 hour when the temperature is above 90°F (32°C). The salad is not suitable for reheating; serve it cold. Do not freeze it, because the celery and yogurt dressing will lose their texture.
Frequently Asked Questions
What is the glycemic index of celery?
There is no widely accepted, dependable GI number for celery. GI testing is designed for foods that provide enough available carbohydrate for a standardized portion, and celery is low in digestible carbohydrate. It is more accurate to describe its glycemic impact as generally low than to quote an unsupported exact score.
Does celery raise blood sugar?
Celery contains a small amount of carbohydrate, so it may contribute a small amount to a meal’s total carbohydrate. Individual responses vary, and the amount eaten, preparation, and other foods served with it all matter. Avoid treating a general GI description as a prediction for a particular person.
Does cooking change celery’s glycemic index?
Cooking softens celery and changes its texture, but there is not a reliable cooked-celery GI value to compare with raw celery. The amount eaten and the rest of the dish are more useful details than assuming cooking creates a specific score.
Is celery juice low GI?
A dependable GI figure for celery juice is not established either. Juicing removes much of the intact fiber and makes it easier to consume more celery quickly, so juice and whole stalks are not interchangeable in texture or serving size.
Can I make this salad without yogurt?
Yes. Use a thick unsweetened plant-based yogurt, or whisk 1 tablespoon (15 ml) extra olive oil with the lemon juice and mustard for a thinner vinaigrette. The vinaigrette will taste sharper and will not coat the ingredients as creamy dressing does.
Can I make the salad ahead?
Yes. Slice and refrigerate the celery, mix the dressing, and chop the walnuts separately. Cut the apple shortly before serving, then toss everything together just before eating for the best color and crunch.
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