Mix the mayonnaise and pineapple juice in a small bowl. Set aside.

Core and dice the unpeeled apples; drizzle lemon juice over the apples in a large bowl. Stir in the celery and nuts.

Fold in the dressing to coat the apples. Cover tightly and chill. Use within a few hours, or the apples will darken and soften.

This recipe yields 4 servings. Serving size: 3/4 cup.

Exchanges Per Serving: 1 1/2 Monounsaturated Fat, 1 Vegetable.

Nutrition Facts: Calories 85; Calories from Fat 63; Total Fat 7g; Saturated Fat 1g; Cholesterol 0mg; Sodium 137mg; Carbohydrate 6g; Dietary Fiber 2g; Sugars 3g; Protein 1g.