Detox Citrus & Spinach Salad with Grapefruit and Orange

There’s a moment every January—after the cookie tins are finally empty, the champagne flutes are back on the shelf, and my skinny jeans feel two inches too tight—when my body starts whispering (okay, shouting) for something green, something bright, something that feels like a reset button. That’s when I reach for this detox citrus and spinach salad. It’s the edible equivalent of drawing back the curtains on a grey winter morning and letting the sunshine flood in.

I first threw it together for a post-holiday brunch with friends who claimed they were “never eating sugar again.” I wanted something that felt indulgent—jewel-toned citrus, buttery avocado, crunchy pumpkin seeds—yet still checked every “clean eating” box. One bite and the room went quiet; forks scraped plates, grapefruit juice pooled on the bottom of the bowl, and every last spinach leaf disappeared. Since then it’s become my year-round detox darling: a vibrant side for grilled salmon, a light lunch when the weather turns steamy, or a make-ahead desk lunch that makes co-workers jealous in the elevator.

Today I’m sharing the fully loaded version—complete with my favorite lime-ginger vinaigrette, the best way to segment citrus without losing half the flesh to the cutting board, and the make-ahead tricks that keep the spinach perky for three days. If you’re craving food that tastes like self-care in a bowl, pull up a chair. This one’s for you.

Why This Recipe Works

Double citrus: Ruby grapefruit and navel orange deliver a one-two punch of vitamin C and natural detox enzymes.
Spinach, not kale: Tender baby spinach has a milder flavor, wilts less, and is easier to digest—perfect for sensitive winter tummies.
Creamy avocado: Healthy monounsaturated fats help your body absorb fat-soluble vitamins A, K, and E from the greens.
Ginger-lime vinaigrette: Fresh gingerol supports digestion and adds gentle heat that balances the sweet citrus.
Toasted pumpkin seeds: Adds magnesium, plant protein, and the crave-worthy crunch you usually get from croutons—minus the gluten.
Make-ahead friendly: Components can be prepped and stored separately for up to four days, so weekday lunches feel effortless.

Ingredients You'll Need

The magic of this salad lies in choosing produce that feels heavy for its size and smells like the orchard. Here’s what to hunt for—and how to swap if your market is missing something.

Baby spinach: Look for organic, pre-washed tubs with perky, forest-green leaves. Avoid bags with condensation or pink-stemmed leaves (a sign of deterioration). If you’re buying loose bunches, trim the woody stems and submerge in ice water for 10 minutes to re-crisp. Not a spinach fan? Baby kale or arugula works—just expect a peppery bite.

Ruby red grapefruit: The blush skin should feel smooth and thin; thick, bumpy rinds often mean pithy fruit. Store at room temp if you plan to use within three days; otherwise refrigerate. Can’t find ruby reds? Oro blanco or pink cara cara oranges give a similar color palette with less bitterness.

Navel orange: Go for organic—you’ll be zesting the peel into the dressing. A ripe navel smells floral and sweet at the stem end. Valencia or blood oranges are gorgeous stand-ins.

Ripe but firm avocado: The neck should yield slightly under gentle pressure. If it’s mushy, you’ll end up with green smears instead of cubes. Hass avocados are my go-to for their nutty flavor.

Fresh ginger: Choose plump, taut knobs with glossy skin. Wrinkles mean it’s drying out. Peel with the edge of a spoon and grate on a microplane for the dressing. Ground ginger is not a substitute here.

Pumpkin seeds (pepitas): Buy raw and toast them yourself; pre-toasted versions are usually stale. No pepitas? Sunflower seeds or chopped pistachios give the same crunch.

Extra-virgin olive oil: A mildly fruity, cold-pressed oil balances the sharp citrus. Avocado oil is a neutral alternative.

Pure maple syrup: Just a teaspoon tames the lime’s acidity. Vegans can keep it; if you’re sugar-free, swap in a pinch of monk-fruit.

How to Make Detox Citrus & Spinach Salad with Grapefruit and Orange

Toast the seeds

Place a dry skillet over medium heat. Add ¼ cup raw pepitas and shake the pan every 30 seconds until the seeds puff slightly and turn golden, 3–4 minutes. Transfer to a plate to cool; they’ll crisp as they cool.

Segment the citrus

Slice off the top and bottom of the grapefruit and orange so they sit flat. Following the curve, cut away peel and white pith. Over a bowl, slip a paring knife down each membrane to release perfect supremes. Squeeze the leftover membranes into the bowl to catch juice for the dressing.

Whisk the vinaigrette

In a jam jar combine 3 Tbsp fresh lime juice, 2 tsp grated ginger, 1 tsp maple syrup, ½ tsp sea salt, and ¼ tsp black pepper. Let sit 2 minutes so the salt dissolves, then add ¼ cup olive oil. Seal and shake until emulsified. Taste—add more maple if your citrus is especially tart.

Prep the avocado

Halve, remove the pit, and cube the flesh while still in the shell. Use a large spoon to scoop out the squares in one motion; they’ll tumble onto your board like green dice. Immediately drizzle with a teaspoon of the dressing to prevent browning.

Assemble the base

In a wide, shallow bowl layer 6 packed cups baby spinach. Pat the leaves dry if they’re damp—excess water dilutes the dressing and makes everything soggy.

Add the color

Arrange grapefruit and orange segments in a chevron pattern for instant restaurant vibes. Scatter avocado cubes, ¼ cup thinly sliced cucumber (English, skin-on), and 2 Tbsp finely sliced red onion over the top. Keep components slightly separate until you dress so the colors stay vivid.

Dress and toss

Drizzle ¾ of the vinaigrette over the salad. Using clean hands, gently lift from the bottom and fold so every leaf is glossy but not drowned. Taste a leaf; add the remaining dressing if desired.

Finish with crunch

Immediately before serving, shower the salad with the toasted pepitas. Add a pinch of flaky sea salt and a twist of cracked black pepper for sparkle. Serve chilled or at cool room temperature.

Expert Tips

Keep greens crisp

Store washed spinach in a salad spinner in the fridge. The basket allows air flow and the bowl catches drips, doubling storage life.

Room-temp citrus

Cold citrus is harder to segment and yields less juice. Let grapefruit and orange sit on the counter 30 minutes before prep.

Sharp knife = clean segments

A thin, flexible boning knife slips closer to membranes than a chef’s knife, giving you picture-perfect supremes.

Prevent avocado browning

Dressing creates a barrier against oxygen, but lime juice in the dressing also slows oxidation. Still, add avocado just before serving.

Taste as you go

Citrus sweetness varies by season. Adjust maple syrup or salt incrementally; you can’t un-pour the dressing once it’s tossed.

Double the dressing

It keeps 5 days refrigerated and is fabulous over grilled chicken, shrimp, or roasted sweet potatoes. Make extra once, thank yourself all week.

Variations to Try

Tropical twist: Swap orange for segmented mandarins and add ½ cup diced mango. Garnish with toasted coconut flakes.
Protein powerhouse: Top with a 7-minute jammy egg or ½ cup chilled quinoa for a complete meal.
Green herb boost: Blend a handful of fresh mint or basil into the dressing for extra phytonutrients and a spa-like aroma.
Cheese lovers: Crumbled goat cheese or feta adds tangy creaminess; use 1–2 Tbsp to keep it detox-friendly.
Crunch swap: Roasted sunflower seeds, sliced almonds, or hemp hearts all work if pepitas aren’t your thing.
Spicy kick: Add a finely diced jalapeño to the dressing or a pinch of cayenne for a metabolism-revving punch.

Storage Tips

Individual components: Store citrus segments, avocado, and dressing in separate airtight containers. Refrigerate citrus up to 4 days, avocado up to 2 days (brush with extra lime). Dressing keeps 5 days; shake before using.

Assembled salad: Once dressed, enjoy within 2 hours for peak texture. If you must store leftovers, place a double layer of damp paper towel over the surface before sealing the container; the towel absorbs excess moisture and keeps leaves from becoming slimy. Consume within 24 hours.

Meal-prep jars: Layer dressing first, then cucumber, citrus, avocado, seeds, and spinach on top. Screw lids tight and refrigerate up to 3 days. Invert onto a plate or shake into a bowl when ready to eat.

Frequently Asked Questions

Fresh segments give better flavor and texture, but if you’re short on time, drain jarred segments very well and pat dry to prevent diluting the dressing.

With ~14 g net carbs per serving, it fits a moderate low-carb plan but may be too high for strict keto. Reduce orange and increase avocado to lower carbs.

Use a sharp, thin knife and cut inside the membrane lines. After supremes are out, squeeze the “skeleton” over a sieve to catch every drop of juice for the dressing.

Oil-based dressings can separate and turn cloudy when frozen. It’s best made fresh, but you can freeze in ice-cube trays and whisk back together after thawing.

Grilled shrimp, baked salmon, or a soft-boiled egg complement the citrus without overpowering it. For plant-based, add a scoop of lemon-garlic chickpeas.

Toss cubes in a light coating of the lime dressing, store in an airtight container with a slice of onion (sulfur slows oxidation), and use within 24 hours.