A great first step towards a low-carb lifestyle is to cut out all of the major carbohydrate culprits. You don’t need to cut them all at once. You can cut them out 1 at a time to make it more manageable, such as by replacing sodas and other sugary drinks with water and sugar-free beverages. Some common sources of refined sugars and simple carbs include: Before you go full low-carb, you may want to replace your carbohydrates with some better carbohydrate options, such as whole grains.  Start slow and just replace 1 serving of your usual carbohydrate foods with 1 serving of a whole grain alternative each day or week. After a week or 2, you will be eating fewer simple carbs and more complex carbohydrates, which will reduce your overall carbohydrate intake and keep you feeling fuller for longer. Some good complex carbohydrate options include: White potatoes are another major source of simple carbs, so replacing them will help you in your transition to a low-carb lifestyle. You can bake and use a sweet potato or other root veggie similar to how you use white potatoes. Some good options include:  Baked sweet potatoes or yams Roasted carrots, kohlrabi, or beets Mashed turnips or rutabaga Celery root or daikon radish fries When you are ready to start transitioning to a low-carb diet, start making simple swaps by replacing your carbohydrates with low-carb alternatives.

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Write a summary of the previous text in Vietnamese:
Loại bỏ đường tinh chế và carbohydrate đơn. Chuyển sang các loại ngũ cốc nguyên hạt trong giai đoạn chuyển tiếp. Thay thế khoai tây bằng khoai lang hoặc các loại củ khác. Thử một số món ăn thay thế đơn giản để giảm lượng carb nạp vào.