• Height: 6 feet 3 inches

• Personal life: Shelton is a retired businessman and has been married to his wife, Ginger, for 24 years. They have two cats, Cosmo and Binky.

Family (ENLARGE)

BEFORE: Shelton at 260 pounds.

Family (ENLARGE)

AFTER: Shelton at 210 pounds.

READ THEIR STORIES: Longtime losers share winning tips, favorite recipes  Sissy Lusk, 42, Canton: From 345 to 130 pounds  Shelby Katz, 41, Peachtree Corners: From 208 to 125 pounds  Dacia Gilkey, 30, College Park: From 256 to 150 pounds  John Payne, 41, Acworth: From 185 to 148 pounds  Keith McKenney, 47, Atlanta: From 275 to 198 pounds  Karen Smicik, 36, Atlanta: From 198 to 158 pounds  Charles Aloisio, 72, Atlanta: From 250 to 150 pounds  Bob Shelton, 64, Atlanta: From 260 to 210 pounds  Benjamin 'Robby' Sneed, 28, Dallas: From 230 to 160 pounds

• How long he's kept it off: Three years, four months. Started in January 2004 and has kept it off since September 2004.

• How he does it: When diagnosed with diabetes, Shelton began following the American Diabetes plan (www.diabetes.org). He exercises five to six times a week at the Cecil B. Day Fitness Center at Dunwoody Baptist Church, where he also teaches spin classes.

• Why he's a successful loser: "What the doctors always tell us: diet and exercise," he says. "As I get older, I have learned that it gets harder and harder not to gain it back, but I feel so much better at a lower weight that the incentive is there to keep it off. I keep my weight goal always in mind and try to keep my weight within a 5-pound range, plus or minus of my goal."

• Biggest challenge since last profiled: In May 2007, Shelton had open heart surgery. "Talk about a brutal surgery — it is something no one should have to go through. However, I was in such good shape that I was back teaching spin classes in August," he says.

• Secrets to continued success: "Establish good eating habits where you are eating things you like and then get started exercising and keep it going and keep moving forward," he says. "It takes your commitment to work at it every day. If all the exercise you do daily is a brisk walk 20 minutes out and 20 minutes back, you will find that bit of working out will get the weight off and keep it off."

Chicken Asparagus Wrap With Lemon-Tarragon Sauce
4 servings

Hands on: 10 minutes
Total time: 30 minutes

Bob Shelton uses a light salad dressing on his wraps, but we created a special dressing to complement the asparagus. You could also make a quick sauce of plain nonfat yogurt and chopped fresh dill.

2 chicken breast halves
Juice of 1/2 lemon
Salt and pepper to taste
1 pound fresh asparagus
4 low-carb whole-wheat tortillas or sandwich wraps
Lemon-Tarragon Sauce (see below)

In a nonreactive dish, drizzle the chicken breasts with lemon juice and sprinkle with salt and pepper. Preheat grill to medium-high heat. Coat the grill grid with nonstick spray. Cook the asparagus spears on the grill until crisp-tender and slightly blistered, 3 to -4 minutes; remove from the grill and set aside. Cook the chicken until it's no longer pink in the center, about 4 to 5 minutes per side. Remove from the grill.

Slice the chicken breasts crosswise about 1/4 inch thick. On each wrap, place several asparagus spears and 1/4 of the sliced chicken. Fold wrap. Warm in the microwave, if necessary. Top with 2 teaspoons Lemon-Tarragon Sauce.

Per serving: 210 calories (percent of calories from fat, 12), 19 grams protein, 29 grams carbohydrates, 4 grams fiber, 3 grams fat (1 gram saturated), 33 milligrams cholesterol, 514 milligrams sodium.

Lemon-Tarragon Sauce Makes about 1/3 cup (about 8 [2-teaspoon] servings)

Hands on: 5 minutes
Total time: 5 minutes

This simple sauce is delicious on asparagus.

1/4 cup fat-free mayonnaise or nonfat yogurt
Juice of 1/2 lemon
2 tablespoons chopped fresh tarragon leaves

In a small bowl, combine the mayonnaise or yogurt, lemon juice and tarragon.

Per serving: 10 calories (percent of calories from fat, 1), trace protein, 2 grams carbohydrates, trace fiber, trace fat (no saturated), no cholesterol, 95 milligrams sodium.