I used to side-eye crab salad at potlucks because it was always gloppy, sweet, and suspiciously… imitation.
When I finally made a keto version at home, it hit way different: juicy real crab meat, a punchy lemony dressing, and actual crunch from fresh veggies.
No weird fillers, no sugar bombs, and it actually fits my macros. Plus? It’s stupid-fast—ready in 10 minutes flat.
💡 WHAT SOLVES THE “SAD KETO” PROBLEM
Forget the sad, soggy seafood salads you might have suffered through before.
This one works because:
- Real lump crab meat — juicy, sweet, naturally low-carb, no mystery starches.
- Mayo + lemon + Old Bay — creamy, bright, and just enough seasoning to wake it all up.
- Fresh herbs — makes it taste clean and vibrant, not heavy.
🧾 INGREDIENTS THAT KEPT IT KETO
Here’s what you need and why it matters:
- Lump Crab Meat (12 oz) – 0g net carbs per serving, if you skip the imitation junk.
- Celery (1/3 cup, finely diced) – Crunch without the carbs. About 1g net carb.
- Red Onion (1/3 cup, finely diced) – Flavor punch. You could sub shallots or green onion if you want it milder.
- Mayonnaise (1/3 cup) – Fat carrier. Makes it rich and satisfying. I use an avocado oil mayo.
- Lemon Juice (2 tbsp) – Brightens everything. Fresh is better; bottled works in a pinch.
- Dijon Mustard (1 tbsp) – Brings tang and slight spice without added sugar.
- Old Bay Seasoning (3/4 tsp) – Iconic with seafood. Don’t skip it.
- Sea Salt & Black Pepper – To taste.
- Fresh Dill, Chives, and Parsley (1 tbsp each, chopped) – Loads of flavor, basically no carbs.
🔁 KETO SWAPS THAT ACTUALLY WORK
Want to tweak it? Here’s what works (and what messes it up):
Swap | How It Changes Things | My Take |
---|---|---|
Greek yogurt instead of mayo | Tangier, lower fat | Works, but use less lemon or it’ll get sharp |
Green onion instead of red onion | Milder, sweeter | Perfect if you hate “raw onion” bite |
Add diced avocado | Creamier, extra fat | A+ for texture and satiety |
Add cooked shrimp | Heftier, meatier | Good if you’re low on crab |
⚡ Heads up: I do NOT recommend dried herbs here. They’ll make it taste dusty, not fresh.
⚠️ KETO MISSTEPS AND HOW I FIXED THEM
What Went Wrong | Why It Happens | How to Fix It |
---|---|---|
Crab salad turned watery | Excess liquid from canned crab | Drain it super well before mixing |
Dressing tasted flat | Not enough seasoning | Taste and adjust salt/lemon after mixing |
Crab got mushy | Over-mixing | Gently fold it like you’re fluffing a pillow |
👩🍳 HOW TO MAKE IT (STEP-BY-STEP)
- Mix the dressing: Whisk together mayo, lemon juice, Dijon, Old Bay, salt, and pepper until smooth.
- Toss the veg and herbs: In a big bowl, combine crab meat, celery, onion, and herbs.
- Combine: Pour the dressing over and gently fold everything together.
- Chill if you can: It’s good right away, but even better after an hour in the fridge.
✅ Texture tip: You want visible crab chunks, not a paste. Be gentle, not aggressive.

🧠 SMART MOVES I ALWAYS USE
- Drain the crab meat really well — especially if you buy the refrigerated canned stuff.
- Use a rubber spatula to mix — way better than a spoon for folding gently.
- Batch it for meal prep: Portion into 4 containers for easy 1-cup servings = no tracking drama.
🧊 HOW I STORE AND TRACK IT
- Fridge: Airtight container, up to 4 days.
- Freezer: Nope. Mayo breaks and the texture turns tragic.
- Macros (per 1 cup serving):
- Calories: 217
- Fat: 15.4g
- Protein: 16.1g
- Total Carbs: 2.6g
- Net Carbs: 1.9g
❓ REAL KETO QUESTIONS, REAL ANSWERS
Q: Will this spike blood sugar?
A: Not if you use real crab and check your mayo label. Stay away from imitation crab — it’s basically fish-flavored candy.
Q: Can I use canned crab?
A: Yes, but buy the good stuff from the refrigerated section, not the shelf-stable cans. Drain it really well.
Q: Is it good for meal prep?
A: Yes! Actually gets better as the flavors meld. Just don’t freeze it.
Nutrition Facts
Serving size = 1 cup, recipe makes 4 servings
Nutrient | Amount per Serving |
---|---|
Calories | 217 kcal |
Fat | 15.4 g |
Saturated Fat | Not provided (likely ~2-3g based on mayo used) |
Protein | 16.1 g |
Total Carbohydrates | 2.6 g |
Fiber | 0.7 g |
Net Carbs | 1.9 g |
Sugar | 1.2 g |
Cholesterol | Not listed, but likely moderate due to crab and mayo (~70-90mg) |
Sodium | Not directly listed, but expected to be moderate-high from crab, Old Bay, and added salt (~400-600mg) |
Check out More Recipes:
- I Thought Cobb Salad Was Boring—Then I Keto’d It
- Low Carb Keto Steak Salad Recipe
- Low Carb Keto Japanese Ginger Salad Dressing
- Asian Salad Dressing – Low-Carb, Keto-Friendly

Low Carb Keto Crab Salad Recipe
Description
Fresh, creamy crab salad with real lump crab, crisp veggies, and zesty dressing — low-carb, keto-friendly, and ready in just 10 minutes.
Ingredients
Instructions
- Whisk mayo, lemon juice, Dijon, Old Bay, salt, and pepper until smooth.
- In a separate large bowl, combine crab meat, celery, onion, and herbs.
- Pour dressing over crab mixture and fold gently until coated.
- Chill for 1 hour if you have time, or serve immediately.