Karen Buzby, RD, LDN, member of the Penn Metabolic and Bariatric Surgery team, provides step-by-step tips for adding protein into a healthy diet after weight-loss surgery.
Protein is essential for just about every bodily process, including regenerating strength and promoting healing. That is why dietary recommendations after weight-loss surgery emphasize the importance of adequate protein intake.
The recommended protein intake after weight-loss surgery is 60 to 80 grams a day.* To determine the protein content in various food items, read the nutrition fact label. In general, most protein-rich foods contain at least seven grams of protein per ounce.
Examples of protein-rich foods include:
- Meat
- Poultry
- Seafood
- Eggs
- Dairy products
- Beans
- Peas
- Nuts
Two weeks after weight loss surgery:
For the first two weeks after your surgery, it is critical to stick to a full liquid diet and rely on protein drinks to fulfill your protein needs. Continue drinking protein drinks until you can meet the daily protein recommendations with solid food alone. Read more about finding a protein supplement that meets your dietary needs.
Three weeks after weight loss surgery:
Approximately three weeks after your surgery, you can start eating pureed foods. The best way to incorporate solid protein in your pureed diet is by using a blender. If blended protein sources don’t appeal to you, there are other softer forms of protein to opt for instead, including:
- Eggs
- Finely flaked, water-packed tuna
- Yogurt
- Cottage cheese
Five to six weeks after weight loss surgery:
Once you progress to the “soft diet,” which usually occurs about five to six weeks after surgery, you can begin introducing soft, but solid foods into your diet. These foods include:
- Ground or chopped meat and poultry
- Moist fish
- Cooked beans
- Lentils
- Soft, soy-based meat alternatives
Two months after your surgery, you can begin adding all forms of low-fat protein into your healthy diet. The best way to prepare protein-rich foods is by moist cooking methods and reheating it in a microwave to prevent dryness and food intolerance.
In general, the best way to make sure you’re getting an adequate amount of protein is by keeping a food diary and tracking your protein intake. See the chart below for a protein content guide.
Food | Serving | Calories | Protein (grams) |
MEAT Group | |||
Sirloin Steak, lean | 2 oz | 95 | 16 |
Ground Beef, 95% lean | 2 oz | 92 | 14 |
Pork Loin | 2 oz | 94 | 17 |
Chicken, white meat, no skin | 2 oz | 93 | 17 |
Ground turkey | 2 oz | 75 | 11 |
Light Tuna, canned in water | 2 oz | 66 | 14 |
Salmon | 2 oz | 116 | 12 |
Shrimp | 2 oz | 70 | 14 |
Egg, large | 1 | 80 | 6 |
Egg whites | 2 | 35 | 7 |
Egg Beaters® | ¼ cup | 30 | 6 |
DAIRY Group | |||
Skim Milk | 8 oz | 90 | 8 |
Yogurt, light | 6 oz | 80 | 6 |
Greek yogurt, nonfat, plain | 6 oz | 90 | 15 |
Mozzarella cheese, part-skim | 1 oz | 70 | 7 |
Cottage cheese, 1% milkfat | 2 oz | 40 | 7 |
NUTS / BEANS Group | |||
Soybeans, aka Edamame | ¼ cup | 65 | 6 |
Tofu, Firm | 2 oz | 40 | 5 |
Soy Milk, Plain | 8 oz | 100 | 7 |
Peanut Butter | 2 Tbsp | 190 | 8 |
Almonds | 1 oz | 165 | 6 |
Chickpeas | ¼ cup | 70 | 3 |
Black Beans | ¼ cup | 55 | 4 |
Lentils | ¼ cup | 60 | 4 |
Boca® Burger, Original | 1 oz | 30 | 5 |
*Allied Health Sciences Section Ad Hoc Nutrition committee, Aillis L, Blankenship J, Buffington C, Furtado M, P{arrott J. Bariataric Nutrition: Suggestions for the Surgical Weight Loss Patient. Surg OBes RElat Dis 2008; 4(5Suppl):S73-108.
**The timeline reflects the Penn Metabolic and Bariatric Surgery team’s approach to reintroducing protein after weight loss surgery. If you are recovering from weight loss surgery, make sure to consult with your health care team to determine your personal dietary plan.
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