The Best Healthy Lunch Ideas For Work to Lose Weight. Packing a healthy lunch for work is a great way to support weight loss while maintaining energy and focus throughout the day. A balanced lunch should include lean proteins, fiber-rich carbohydrates, and healthy fats to keep you full and prevent cravings. Salads with grilled chicken, quinoa, and mixed greens are excellent choices, especially when paired with a light vinaigrette instead of creamy dressings.