Understanding the Interaction Between Keto Diet and Wegovy for Weight Loss

Wegovy® is a prescription medicine that assists with weight loss. It has gained popularity as an effective medication for weight management in individuals living with overweight and obesity. Wegovy, also known as semaglutide, is an injectable prescription medicine that acts as a GLP-1 receptor agonist. It stimulates insulin release, reduces hunger and food intake, and promotes satiety. It is FDA-approved for obesity, unlike Ozempic and Mounjaro, which are only approved to treat type 2 diabetes.

However, certain foods can potentially worsen the side effects of this medication. Knowing what to include in your diet and what foods to avoid when taking Wegovy for weight loss can help reduce side effects and enhance its effectiveness. A well-balanced diet can promote better blood sugar control and weight loss, supporting your Wegovy treatment.

The Role of Diet in Wegovy Treatment

Wegovy is an injectable medication prescribed to aid weight loss. It functions as a glucagon-like peptide-1 (GLP-1) receptor agonist, mimicking a hormone in your body that regulates blood sugar levels and suppresses appetite.

Potential Side Effects of Wegovy

Like any medication, Wegovy may have some potential side effects, especially during the initial stages of treatment. Some of the common side effects of Wegovy include nausea, vomiting, diarrhea, constipation, heartburn, abdominal pain, gas, bloating, and suppressed appetite. In some cases, headaches, dizziness, an increased heart rate, and rare instances of gallbladder disease may occur.

Dietary Considerations While Taking Wegovy

Although there are no specific foods that are completely restricted while taking Wegovy, some dietary choices can exacerbate adverse side effects or hinder the medication's efficacy. For example, high-fat, fried, and greasy foods may worsen nausea, diarrhea, or vomiting. Additionally, consuming sugary foods can disrupt blood sugar management and reduce the medication’s effectiveness.

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While no foods are entirely off-limits, limiting certain types of food can help manage potential side effects and enhance the effectiveness of Wegovy.

Foods to Limit or Avoid

  • Fried and greasy foods: Consuming these foods can produce gastrointestinal symptoms that resemble some of the Wegovy side effects, such as bloating and abdominal discomfort. Additionally, they tend to be high in calories and unhealthy fats that can deter weight loss efforts when consumed in large amounts.
  • Sugary foods: Foods with high sugar content, such as candy, soda, desserts, ice cream, specialty coffee drinks, and juices, can cause blood sugar spikes that counteract Wegovy’s blood sugar-lowering effects. Moreover, they often contribute to weight gain as they lack nutritional value, which can make it more challenging to attain your desired weight.
  • Carbonated beverages: Drinking sodas or other carbonated beverages can lead to bloating, burping, and abdominal discomfort that can worsen some of the Wegovy side effects.
  • Refined carbohydrates: Foods that contain refined carbohydrates, such as white bread, pasta, and processed snacks, can raise blood sugar levels and undermine your weight loss efforts.
  • Alcohol: Drinking alcohol while taking Wegovy can cause both hypoglycemia (low blood sugar) and hyperglycemia (high blood sugar), depending on how much and how often you drink. It may be best to limit alcohol intake to one drink daily for women and two drinks daily for men (1 drink = 5 oz wine, 12 oz beer, or 1.5 oz distilled spirits) in conjunction with your normal meal plan.

Foods to Include in Your Diet While Taking Wegovy

Supporting your Wegovy treatment with a well-balanced diet can promote better blood sugar control and weight loss.

  • Lean proteins: These foods provide high-quality proteins that promote fullness and stabilize blood sugars. Prepare them by grilling, baking, air-frying, or broiling rather than frying. Pairing lean proteins with non-starchy vegetables and small portions of high-fiber carbohydrates is effective for both blood sugar balance and weight loss. Lean proteins include turkey, fish and other seafood, eggs, tofu, tempeh, and chicken.
  • Healthy fats: Dietary fats can help give foods a satisfying mouthfeel and leave us feeling fuller for longer. Opt for unsaturated fats from sources like olive oil, avocados, nuts, and seeds, as they improve cholesterol levels and aid satiety.
  • Non-starchy vegetables and fruits: Include a variety of vegetables like broccoli, peppers, carrots, cauliflower, and fruits in your diet to boost nutrient intake and prevent blood sugar fluctuations.
  • High-fiber carbohydrates: Choose fiber-rich options such as peas, quinoa, steel-cut oats, brown rice, whole wheat bread, and sweet potatoes. These options will help maintain stable blood sugar levels. Fiber can cause gas and bloating, especially if you aren’t used to getting a lot, so make sure to increase fiber gradually and drink lots of water, too.
  • Water: Staying hydrated with sufficient water intake can support weight loss efforts by reducing overeating and increasing your metabolic rate.

Wegovy Interactions with Other Drugs

An interaction occurs when one substance causes another substance to have a different effect than expected. Before you start treatment with Wegovy, tell your doctor and pharmacist which prescription, over-the-counter, and other medications you take. By sharing this information with them, you may help prevent possible interactions.

Contraindications of Wegovy

Sometimes, factors or conditions could prevent your doctor from prescribing Wegovy due to the risk of harm. These are known as contraindications. The contraindications of Wegovy include:

  • Having MEN2 or medullary thyroid cancer
  • Having had an allergic reaction to Wegovy or any of its ingredients

Wegovy and Alcohol

There are no known interactions between Wegovy and alcohol. However, if you drink alcohol, your doctor may advise you to avoid or limit alcohol consumption during Wegovy treatment because drinking alcohol while taking the drug may worsen some of Wegovy’s side effects. For example, you may have worsened headache, dizziness, nausea, or vomiting. Limiting alcohol intake can also help with weight management.

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Specific Drug Interactions

  • Insulin: Using Wegovy and insulin together may increase the risk of low blood sugar with either drug. If your doctor prescribes Wegovy with insulin, they may prescribe a lower dosage of insulin. If you use Wegovy with insulin, watch for symptoms of low blood sugar.
  • ACE inhibitors: Using Wegovy while taking an ACE inhibitor may increase the risk of low blood sugar as a side effect of Wegovy. Before you start Wegovy treatment, tell your doctor if you take an ACE inhibitor. If your doctor prescribes Wegovy with an ACE inhibitor, they may advise you to watch for symptoms of low blood sugar.
  • Other GLP-1 receptor agonists: Wegovy’s manufacturer advises against prescribing the drug with other GLP-1 receptor agonists.

Wegovy Interactions with Supplements, Herbs, and Vitamins

  • Supplements: Wegovy may interact with dehydroepiandrosterone (DHEA), garlic, and green tea. This is because the supplements mentioned may decrease blood sugar levels. For this reason, your doctor may recommend avoiding DHEA, garlic, and green tea supplements while you’re using Wegovy.
  • Herbs: There are no specific reports of herbs interacting with Wegovy. However, that doesn’t mean herbal interactions won’t occur or be recognized in the future. Because of this, it’s important to check with your doctor or pharmacist before taking any of these products during Wegovy treatment.
  • Vitamins or minerals: There are no specific reports of vitamins interacting with Wegovy. However, Wegovy may interact with a mineral called chromium. Chromium may decrease blood sugar levels. Taking chromium while using Wegovy can increase your risk of having low blood sugar. For this reason, your doctor may recommend avoiding chromium products while you’re using Wegovy.

Other Potential Interactions

  • Foods: Wegovy may interact with green tea. Consuming too much green tea while taking Wegovy can increase the risk of low blood sugar.
  • Vaccines: There are no known interactions between Wegovy and vaccines.
  • Lab tests: Wegovy is not known to interact with lab tests.
  • Cannabis or CBD: Cannabis (often called marijuana) and cannabis products, such as cannabidiol (CBD), have not been specifically reported to interact with Wegovy. However, as with any drug or supplement, talk with your doctor before using cannabis in combination with Wegovy.

Health Conditions That May Interact with Wegovy

Certain medical conditions and other factors may increase the risk of interactions with Wegovy. Before you take this drug, be sure to talk with your doctor about your health history.

  • Type 2 diabetes: Wegovy may cause low blood sugar in certain people with type 2 diabetes.
  • Diabetic retinopathy: If you have diabetic retinopathy, talk with your doctor before using Wegovy.
  • Allergic reaction: If you’ve had an allergic reaction to Wegovy or any of its ingredients, your doctor will likely not prescribe Wegovy.
  • Kidney problems: Before using Wegovy, tell your doctor if you have a kidney problem, such as kidney failure.
  • Pancreatitis: Wegovy may cause pancreatitis as a side effect.
  • Upcoming surgeries or procedures: If you have an upcoming surgery or procedure, be sure to tell your doctor you are using Wegovy.
  • Gastroparesis: Wegovy is not recommended for people with a history of severe gastroparesis.
  • Mood conditions: If you have a condition that affects your mood, tell your doctor.
  • Breastfeeding: It’s not known whether it’s safe to use Wegovy while breastfeeding.
  • Pregnancy: There haven’t been enough clinical trials to determine whether Wegovy is safe to use while pregnant.

Nutrient Deficiencies and GLP-1 Drugs

Losing weight on GLP-1 drugs like Ozempic, Wegovy, Mounjaro, and Zepbound may increase your risk of developing nutrient deficiencies because these medications cause people to significantly reduce their food intake. Also, if you experience side effects from GLP-1 drugs, like vomiting or diarrhea, you may not absorb all the nutrients from the food you are consuming.

While there is still not enough data on nutrient deficiencies specific to people on GLP-1 drugs, experts say these are the five most common nutrient deficiencies people can experience and what they can do to avoid them:

  • Protein
  • Vitamin D
  • Vitamin B12
  • Iron
  • Calcium

Other Potential Drug Interactions

One of the main effects Wegovy has on the body is that it slows down the rate at which food moves through the gastric system. This is known as delayed gastric emptying. This delay impacts how other medications are absorbed in the body.

  • Other weight management medications: It isn’t advisable to take another receptor agonist, such as Ozempic or Mounjaro if you are taking Wegovy because combining multiple GLP-1 medications could increase Wegovy's side effects.
  • Insulin and other diabetes medications: Taking Wegovy and other diabetes medications at the same time can result in very low blood sugar, also known as hypoglycemia.
  • Oral contraception and other hormone therapies: If you take contraceptives orally, they may not be absorbed by the body completely due to delayed gastric emptying - which may affect their efficacy.
  • Anticoagulants or antiplatelet medications: Using Wegovy could increase your risk of experiencing adverse bleeding events.
  • Thyroid medications: Wegovy may affect how thyroid medications are absorbed in the body, which could potentially alter how effective they are.
  • Psychiatric medications or antidepressants: Some psychiatric medications, such as selective serotonin reuptake inhibitors (SSRIs), may interact with Wegovy.
  • Pain medication: Some pain medications like nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen can reduce how well Wegovy works.
  • Immunosuppressant medications: Wegovy may interact with these medications, so it’s crucial that you speak to your transplant team before you start Wegovy.
  • Supplements and other over-the-counter drugs: Supplements containing stimulants like caffeine may interfere with how Wegovy works.

Safety Tips for Wegovy Treatment

When used correctly, Wegovy can be effective for chronic weight management and obesity.

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  • Use the Wegovy pen correctly: Wegovy comes in the form of a prefilled injection. It should be administered once a week in the upper arm, abdomen, or thigh.
  • Start with the recommended initial dose: When you initially begin using Wegovy, your doctor will typically start you on a dose of 0.25mg.
  • Follow your doctor’s instructions: Always take Wegovy exactly as prescribed, and follow your healthcare provider’s instructions closely.
  • How to manage a missed dose: If you have missed your Wegovy dose and your next dose is more than 48 hours away, you should administer the injection as soon as possible.

Combining Keto and Wegovy

If you’re considering the ketogenic (keto) diet or thinking about a prescription for a weight loss medication like Wegovy, you’re not alone. Studies have shown that both keto and GLP-1 medications can lead to meaningful weight loss when combined with lifestyle changes. While combining keto and GLP1-s safely can be done, there is no evidence that a keto diet combined with GLP-1s is more effective long-term.

The keto diet and GLP-1 medications are two very different approaches people can consider to manage weight. The keto diet refers to a method of eating where people significantly limit carbohydrates and achieve a state of ketosis. They get most of their calories from fat and protein. With the exception of people with certain medical conditions, most people can use the keto diet to lose weight. On the other hand, GLP-1 medications are strictly prescribed to people who need to lose weight for health reasons.

Pros of Combining

  • Double the appetite control: Both GLP-1 medications and following the keto diet can help suppress your appetite.
  • There is some evidence that shows that combining GLP-1 medications with a keto diet can increase weight loss in the first 6 months.

Cons and Risks of Combining

  • Hypoglycemia for people with diabetes (low blood sugar): Both keto and GLP-1 medications can lower blood sugar levels.
  • Nutritional deficiencies: GLP-1s and following the keto diet can both suppress appetite which can lead to nutrient deficiencies.
  • Fatigue: Feeling tired or lacking energy can be a common side effect when combining keto and GLP-1 medications.
  • Dehydration: Both the keto diet and GLP-1 medications can lead to increased urination, especially in the beginning.

Safety Tips for Combining Keto and Wegovy

  • Always work with your doctor and a qualified nutritionist when deciding to combine keto and GLP-1 medications.
  • Prioritize nutrient-dense, high-fiber foods: Focus on whole, unprocessed foods like leafy greens, low-carb fruits, non-starchy vegetables, lean protein, and healthy fats.
  • Choose healthy fats: While keto is a high-fat diet, be sure to choose healthy fats and be mindful of your overall intake.
  • Transition gradually: Take time to get acclimated to your medication before switching to a keto diet.
  • Talk to your doctor: Stay connected with your doctor while taking a GLP-1 medication. Clear any diet changes with your doctor.

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