Having a Baby After Weight Loss Surgery

Cara Stewart, RD, LDN, member of the Penn Metabolic and Bariatric Surgery team, and Monica A. Mainigi, MD, fertility specialist at Penn Fertility Care, provide important information for women trying to become pregnant and maintain a healthy pregnancy after weight loss surgery.

Many women struggle with fertility as a result of their weight. In fact, obesity puts women at greater risk for ovulation dysfunction and menstrual irregularity, both of which can interfere with fertility. In addition, obesity can lead to an increased risk of miscarriage and decreased success with fertility treatments. For overweight women who are having a hard time conceiving, weight loss surgery may be an option to consider.

For women considering pregnancy after they have had bariatric surgery, it is important to keep the following information in mind.


Fertility boost
Obesity can interfere with hormone production, making it more difficult to get pregnant.  Weight loss after bariatric surgery can lead to regular cycles and ovulation, and improved fertility. In fact, a 2005 study published in the Journal of Clinical Endocrinology and Metabolism found that surgical weight loss for women with PCOS often resolved their reproductive and metabolic abnormalities. 

Healthier pregnancy, healthier baby
After weight loss surgery, medical conditions such as high blood pressure and diabetes are significantly improved or resolved leading to a lowered risk of developing serious complications during pregnancy or delivering a baby born with complications.  Many women are still obese after weight loss surgery which places them at a higher risk for gestational diabetes and preeclampsia, but the risk is far less than before surgery.  Pregnant women who have had bariatric surgery should see a high-risk obstetrician to best manage prenatal care.

Give it time
It is important to wait at least 18 months after surgery to start trying to get pregnant. In the period immediately following gastric bypass or sleeve gastrectomy, rapid weight loss causes stress on the body, including diminished nutrition intake, which can cause complications for an expecting mother and growing baby. Effective contraception is absolutely critical for women pursuing weight loss surgery.  For women with an adjustable gastric band, fluid may be removed from the band during pregnancy to accommodate the need to eat more calories.

Keep supplementing
Good nutrition is especially important for women trying to conceive.  After weight loss surgery, patients are at a higher risk for deficiencies of certain nutrients, including vitamin B12, folic acid, calcium, iron, and vitamin D. It essential to continue taking vitamin and mineral supplements as recommended by the bariatric team.

Be ready for weight gain
After having weight loss surgery, it can be difficult to accept that pregnancy is a time when it is normal, healthy and necessary to gain weight.  Healthy weight gain during pregnancy is important to nourish a growing baby, but work with the program dietitians to avoid unhealthy weight gain during pregnancy.

The Penn Metabolic and Bariatric Surgery Program offers lifelong follow-up care and nutritional support for patients who have had weight loss surgery. Women considering pregnancy after weight loss surgery should discuss their plans with the bariatric surgery team.

For more information on fertility services at Penn Medicine, visit the Penn Fertility Care website.

- Cara Stewart, RD, LDN and Monica Mainigi, MD

Get the Facts about Healthy Fats: Omega-3 and Omega-6 Fatty Acids

Rachel Griehs, RD, LDN, member of the Penn Metabolic and Bariatric Surgery team, explains the nutritional importance of essential fatty acids.


For years experts have been saying that all fats are bad, but it turns out that is not the case. Among the healthy fats are omega-3 and omega-6, which are considered essential fatty acids. Although the body needs them, it cannot produce them itself, which is why they must be incorporated into your diet.

There are three types of omega-3 fatty acids:
1.    Alpha-linoleic (ALA)
2.    Docosahexaenoic (DHA)
3.    Eicosapentaenoic (EPA)

ALA is found in plant foods and flaxseed is the richest source. EPA and DHA are found in similar foods, including seafood, algae and higher fat cold water fish, such as mackerel, albacore tuna, salmon, sardines, Atlantic herring, swordfish and lake trout. Enriched eggs are also a good source of omega-3 fatty acids because the egg-producing hens are fed a diet that includes flaxseed and algae. As a result, these eggs contain all three types of omega-3 fatty acids. 

Omega-6 fatty acids are made up of linoleic acid. They are found in nuts, seeds and vegetable oils, specifically soybean, safflower and corn oil. Experts recommend that 5 to 10 percent of your total caloric intake should come from omega-6 fatty acids.

How do these fatty acids benefit health?

Omega-3 fatty acids thin the blood, reducing the risk for blocked blood vessels, heart attacks and strokes. They also prevent hardening of the arteries, lower triglycerides and help reduce blood pressure.

Omega-6 fatty acids lower cardiovascular disease risk by decreasing total cholesterol, including “bad” cholesterol (LDL—low density lipoprotein). However, by reducing the total cholesterol, omega-6’s also lower “good” cholesterol (HDL—high density lipoprotein), which functions like a sponge and carries “bad” cholesterol and other lipids to the liver for excretion.

The American Heart Association recommends that people who do not have coronary heart disease (CHD) eat a variety of fish, specifically oily fish, at least twice a week. For those with CHD, they recommend one gram of EPA and DHA from oily fish a day. It can be hard to obtain sufficient omega-3 from your diet alone. If so, talk to your physician about adding a fish-oil supplement.

- Rachel Griehs, RD, LDN

Tips for Healthy Holiday Eating After Weight Loss Surgery

Karen Buzby, RD, LDN, member of the Penn Metabolic and Bariatric Surgery team, provides tips for managing your post-surgical diet during the holidays.

There is no getting around it. Food is a central part of the holiday season. Whether you’re enjoying holiday food with friends and family or inundated with unhealthy treats at the office, it is hard to maintain your healthy eating goals over the holiday season, but it is possible.

These tips can help you stay on track with your post-surgical diet and lifestyle changes while still allowing you to enjoy the holiday festivities.

Don’t skip meals
Always make time for breakfast, lunch and dinner. Going long stretches without eating can lead to eating too much or too quickly and cause nausea or vomiting in people who have had weight loss surgery. It can also result in unhealthy food choices due to overwhelming hunger.

Be selective about food choice
Resist the temptation to try foods that are high in sugar and fat. After gastric bypass surgery, fatty and sugary foods can cause “dumping syndrome,” resulting in severe abdominal pain and cramping, diarrhea, nausea and vomiting. Instead, choose low-calorie party foods such as raw vegetables, fruit with yogurt dip or boiled shrimp with lemon or cocktail sauce.

Stay well hydrated
Stay hydrated by drinking water and low-calorie beverages. Avoid alcoholic beverages and try to separate eating and drinking by 30 minutes.

Keep a food diary
Research* shows that recording what you eat helps you stay on track during the holidays. It also helps you meet your protein and fluid goals. Take a minute each night to record your food and fluid intake for the day.

Click here for more healthy eating tips for you and your family.

- Karen Buzby, RD, LDN


*Cornett R, Akers J, Salva J, Zoellner J, Davy B. Daily self-monitoring during the winter holiday period: a feasible strategy for holiday weight maintenance. SCAN’s PULSE. Fall 2011, Vol 5, No 4: 1 – 6.

Eat Right When Eating Out

Karen Buzby, RD, LDN, and Cara Stewart, RD, LDN, members of the Penn Metabolic and Bariatric Surgery team, offer these tips for eating healthy when dining out.

Dining out can be a challenge for anyone trying to follow a healthy eating plan, but it is especially difficult if you have had weight loss surgery. Restaurant portions are notoriously large and the meals are often packed with sodium and hidden calories from fats, sugars and sauces. Before weight loss surgery, larger portions may have tempted you to eat more than you wanted or needed. After weight loss surgery, the food may go to waste or cause discomfort. 

The following tips can help you enjoy your meal out while sticking to your diet plan.

Limit calories:

• Be conservative with food selection, especially during the first few months after surgery. Stick with simple prepared foods.
• Before ordering, ask yourself: “Is this food pouch worthy?” Make sure you order foods that are a good source of protein and fiber.
• Look for heart-healthy, low-fat or light options. U.S. Food and Drug Administration (FDA) regulations require restaurants to back up their health claims. Feel free to ask for nutrition information if it is not already provided.
• Stay away from the bread and chip baskets as well as dessert and alcohol menus. Ask the server not bring out the dessert cart. If you choose to eat bread, opt for a small, plain yeast roll and avoid items with added fat like garlic bread, cornbread, croissants and muffins.  
• Salad dressings are often high in calories and fat. Always order dressing on the side and ask for low-fat dressing, a lemon wedge or flavored vinegar instead of the full fat and calorie version. 
• Don’t drink your calories. Quench your thirst with calorie-free drinks like water or unsweetened iced tea. Limit or avoid alcoholic beverages.
• If your job requires socializing or doing business over meals, call ahead or go online to learn about your options in advance. Inform the restaurant manager of your dietary restrictions and make special requests ahead of time if necessary.
• Savor each bite of food, enjoy the company and take your time. Allow at least 20 to 30 minutes for each meal. Remember, conversation is calorie-free!

Control portion sizes:

• Watch your portion size. People who have had bariatric surgery receive a “restaurant card” to request smaller portions when dining out. Use it to make sure your meals are an appropriate size.
• Share a meal or order a smaller portion. This reduces portion size and the expense as well.  
• Order from the lunch menu if it is available. Often the lunch menu offers smaller and less expensive entrees.
• Order from the children’s menu if there are healthy selections available.
• Order an appetizer as a main entrée. The portions of appetizers are usually two to four ounces, which is the ideal meal size after weight loss surgery. 
• Ask the waiter to split the main dish and box half before serving it. You can also request a “doggie bag” as soon as you feel satisfied to avoid the temptation of overeating. 
• Try a tapas restaurant, which serves snack-sized appetizers and entrées.  

Manage leftovers:

• When you take home leftovers, remember to refrigerate the food promptly to avoid food-borne illness. Food left out for more than two hours may not be safe to eat.
• Write the date of purchase or preparation on leftovers and remember to discard the food after three to five days. Always follow the mantra: “When in doubt, throw it out.” Plus, you don’t want your refrigerator to turn into a jungle of leftover containers. 
• Reheat food thoroughly.

- Karen Buzby, RD, LDN and Cara Stewart, RD, LDN