Vitamins and Supplements to Discontinue Before Surgery

Key Takeaways

• Many doctors recommend that you stop certain vitamins and supplements before surgery because they can increase your risk of complications like excessive bleeding, cause negative interactions with anesthesia, and cause blood pressure changes.
• Consult your healthcare team about your full list of supplements — herbal and over-the-counter — well before your procedure.
• Start stopping high-risk supplements, like Vitamin E, fish oil, and some herbal products, at least one to two weeks prior to surgery, depending on your healthcare provider’s guidance.
• Other factors like your personal medical history and the surgery you’re having can influence which supplements you should discontinue and when.
• Maintain a current log of all of your vitamins, supplements and medications and provide this to your physician to allow for safe surgical scheduling.
• Post-surgery, certain supplements — including Vitamin C, zinc, and probiotics — could assist your recovery, but as always, check with your healthcare professional about appropriate timing and dosages.

Doctors commonly instruct patients to discontinue vitamins prior to surgery to reduce the risk of complications. Certain vitamins, such as vitamin E or herbal products, can have a blood-thinning effect or alter anesthesia. Others can increase the risk of bleeding or delay the body’s healing response after surgery. Most surgeons are going to inquire about all supplements and vitamins, not just prescription medications. Timing depends on the vitamin, but stopping them at least 1-2 weeks before surgery is common advice. To assist folks figure out what to do, this guide shares which vitamins can cause problems, why physicians offer this recommendation, and what to do in advance of any scheduled surgery.

The Pre-Surgery Pause

Pre-surgery, a lot of patients are told to halt or modify their daily supplements and medications. This “pause” is no accident. It reduces the risk of complications during and immediately following surgery. The optimal strategy is contingent on the type of surgery you are having, your health, and your daily intake. Certain supplements need to pause days or even weeks prior to surgery. Providers might mention to skip your morning supplements on surgery day because you’re not eating.

Supplement/Vitamin	Possible Complication	Reason for Stopping/Pausing
Vitamin E	Increased bleeding	Thins blood, interacts with blood thinners
Ginkgo biloba	Increased bleeding	Can raise risk of surgical blood loss
Garlic	Increased bleeding	Can thin blood
Ginseng	Blood sugar changes, bleeding	May affect glucose and clotting
Fish oil/omega-3	Increased bleeding	May interact with blood thinners
CBD oil	Increased bleeding	Prolongs bleeding time

Bleeding Risk

Supplements such as Vitamin E, ginkgo biloba and garlic cause you to bleed more during surgery. Fish oil and CBD oil can as well. If the bleeding isn’t under control, surgery can get hazardous quickly. Certain surgeries, such as brain or spine operations, are especially sensitive to bleeding. Doctors tend to recommend halting these supplements a minimum of one week prior to surgery, occasionally extending to two weeks for herbs such as ginseng and ginkgo. Always check with your provider what is safe for you.

Anesthesia Interaction

Herbal preparations such as kava and valerian can reduce the rate at which your body clears anesthesia. This can leave you drowsy or sluggish to emerge. Certain herbal products can have adverse interactions with anesthetic medications. Inform your anesthesiologist of herbal products, even teas or powders. You might have to halt some of them a week or more prior to surgery to maintain anesthesia secure and seamless.

Blood Pressure

Supplements like licorice root or ephedra can increase blood pressure, while others lower it too much. Labile pre-surgical blood pressure means it’s more difficult for your squad to stabilize you. If you take supplements for vitality, weight loss, or cardiovascular benefit, discuss them with your provider. Halting or altering these pre-surgery can assist in maintaining your heart and circulation stable.

Blood Sugar

Supplement	Effect on Blood Sugar	Recommendation
Ginseng	Can lower	Monitor/stop before surgery
Chromium	Can lower	Monitor/stop
St. John’s Wort	May raise or lower	Discuss with provider

Supplements such as ginseng or chromium can alter blood sugar. This is most important for diabetics, but can affect anyone. Discuss with your physician any supplement that might impact blood sugar. You might have to hold them and watch your glucose rather closely for a few days pre and post surgery. Stable blood sugar helps you HEAL better and faster.

Which Supplements to Stop

Halting specific vitamins and supplements pre-surgery is standard to help reduce the risk of complications, particularly bleeding or adverse drug interactions. Patients are typically recommended to stop these supplements at least one to two weeks prior to surgery and to refrain until all anticoagulant medications are eliminated from their system. These targeted supplements to quit frequently include both OTC and herbal varieties.

• Vitamin E
• Fish Oil
• Vitamin K (monitor intake)
• Multivitamins
• Herbal supplements (Echinacea, Ephedra, Feverfew, Garlic, Ginkgo Biloba, Ginger, Green Tea, Kava Kava, St. John’s Wort, Valerian)
• Large doses of Vitamin C
• CBD oil
• Supplements like Glucosamine, Chondroitin, Bromelain, Cat’s claw, Turmeric
• Non-supplement medications: Aspirin, Celecoxib, Diclofenac, Ibuprofen, and other NSAIDs

Review your supplements with your healthcare provider. They can guide when it’s best to stop each one, and help you maintain an updated list for both your doctor and hospital visit.

1. Vitamin E

Cease vitamin E at least 7 days before surgery. Vitamin E may slow blood clotting by interfering with platelet aggregation, which increases the risk of bleeding during and after surgery. That risk is even greater if you take blood thinners or NSAIDs. That said, always consult your surgeon about your Vitamin E and listen to them. By keeping your surgical team in the loop, you help them plan for a safe surgery and steer clear of needless hazards.

2. Vitamin K

Vitamin K helps your blood to clot, so altering your levels can impact surgery. If you’re on blood thinners, your doctor might want to monitor or modify your Vitamin K consumption. This equilibrium is imperative to avoid hemorrhages and thromboses. Be prepared to discuss your Vitamin K intake– whether from green veggies or supplements– so your care team can make an informed decision about your pre op plan.

3. Fish Oil

Fish oil supplements are a favorite for the heart, but they can increase bleeding risk due to their impact on platelets. This is why it’s important to talk about your fish oil use with your doctor long before your operation date. Based on your health and surgical history, your provider may have you discontinue these supplements 1-2 weeks prior. Fish oil may interact with other supplements and medications, so a full supplement review is always recommended.

4. Herbal Supplements

A lot of herbal supplements, including St. John’s Wort, Ginkgo Biloba and Kava Kava, interact with anesthesia or blood clotting. Some, like ginger and garlic, can increase bleeding risk, while others may influence how your body metabolizes drugs. Always bring a complete list of herbal supplements to your doctor. Even seemingly benign herbs can have serious implications in conjunction with other medications. Others should be discontinued as early as two weeks prior to surgery.

5. Multivitamins

Multivitamins can have ingredients that might impact your surgery, such as high doses of certain vitamins or minerals. For most, it’s advisable to consult with your physician about if you should hold or modify your combined multivitamin before surgery. You might have to hold these on your surgery day, particularly if you’re fasting or if a component can interact with anesthesia or medications.

The Timeline

Ceasing vitamins and supplements prior to surgery reduces the risk of bleeding, drug interactions and other complications. Timing is important. Most clinics will contact you with final instructions a week prior to your procedure, but you can get a jump on things by mapping out your supplement schedule well in advance and maintaining close communication with your healthcare team. Listen to them, record any supplement or medication and respect their schedule.

Two Weeks Before

Start to discontinue high-risk supplements approximately 14 days pre-operatively. That encompasses everything from Aspirin to Vitamin E to diet pills to all herbal supplements. Herbal medicines, including ginkgo, garlic, ginseng, and St. John’s Wort can increase bleeding or interact with anesthesia. Your care team may suggest steering clear of green tea extract and fish oil, two popular supplements that thin the blood.

During this time, you may need to modify your diet to compensate for nutrients absent from ceasing supplements. Say, you take iron or vitamin D regularly — then ask if you should be upping leafy greens or dairy in your meals. Tell your doctor if you feel fatigued, dizzy, or have any new symptoms. Tracking and reporting changes allows your medical professional to protect you. Trust the process, and track in writing what you discontinue and when, so nothing falls through the cracks.

One Week Before

At one week, confirm you have ceased all high risk supplements. Cross-check your list with your care team, such as over-the-counter meds, and disclose any vitamins you may have missed. This is the final window to catch anything that could increase bleeding or cause issues with the anesthesia.

This week is about body prep. Your care team will likely counsel you to stay well hydrated and eat a balanced diet. You might be advised to skip nonsteroidal anti-inflammatory drugs (NSAIDs), like ibuprofen, which can increase bleeding risks. Concentrate on bland, easily digestible foods.

The Day Before

The day before surgery, validate you have ceased all supplements. Adhere to fasting guidelines—nothing to eat or drink after midnight. Bring a photo ID, your insurance card, and a list of all of your medications and vitamins. If you have questions, consult your doctor. Don’t rely on last-minute otc meds and just keep with the plan.

Day of Surgery

Get there two hours early as they requested. Bring all paperwork and your updated medication list. Prepare for potential pre-procedure wait. Keep cool and inform staff if something has changed.

The Surgical Gray Area

Surgical planning is seldom straightforward for supplement-takers. Your own health, your own surgery, and the supplements in question all factor into what’s best. Supplements such as CBD oil, ginkgo biloba, ginseng, and St. John’s Wort can alter your body’s reaction to anesthesia or increase bleeding risk. Over half of adults take some kind of supplement, so the potential for interactions is genuine. Physicians typically instruct patients to discontinue specific supplements or reduce dosages 7–14 days preoperatively. Disclosing all supplement and medication information to your medical team is central to safe treatment.

Dosage Matters

Your dose of each supplement shapes its pre-surgical risk. Large amounts of certain vitamins or herbs equate to a greater risk of bleeding, blood pressure fluctuations, or blood sugar fluctuations. For instance, megadoses of vitamin E or fish oil can cause blood thinning, which may cause bleeding when undergoing surgery or post surgery.

It’s important to review your supplement list with your healthcare provider, particularly if you take above the recommended dose. Sometimes, simply reducing the dose is sufficient, other times, discontinuing is safer. This review is no one-size-fits-all. Your doctor might recommend modifications depending on your medications, age and overall health.

Surgery Type

Not all surgery carries the same risk from supplements. Bleeding is a huge concern during large surgeries, so surgeons can be more aggressive about discontinuing some products. For eye or brain surgeries, the guidelines might be stricter because even minor bleeds are grave.

Your surgeon may request that you discontinue just the supplements that increase risk for your particular procedure. For small skin surgeries, the guidelines might be looser. Be sure to inquire about rules that apply to the specific type of surgery you’re undergoing, not just blanket suggestions.

Certain surgeries, such as heart or joint replacements, typically require more planning. Your care team might desire tighter restrictions on your intake in the weeks leading up to your surgery.

Your Health

If you have chronic medical conditions they can alter how your body processes both vitamins and surgery. Diabetics, those with hypertension or blood clotting disorders may require special supplementation regimens.

Be transparent about your medical history. Inform your provider of any pill, supplement or herbal you take, no matter how minor.

Doctors take this complete view to provide care tailored to your needs. What’s safe for someone else might not be safe for you.

Personalized advice leads to safer, smoother surgeries.

The Recovery Advantage

Even though it may seem strange, certain vitamins and supplements can give your body a serious lift post-operative. The proper nutrition assists with recovery, maintains your immune system, and potentially reduces the risk of complications. Because supplements can impact your body’s response to surgery, it’s smart to know which ones support you and when. Maximizing recovery begins with proper nutrition and, in some cases, the right supplements when your physician gives the green light.

Vitamin C

Vitamin C assists your body in collagen production, which you need for wounds to heal quickly and robustly.

Doctors like to recommend holding off on Vitamin C right before surgery, but you can resume once you’re cleared after the fact. When you do, consult with your physician to establish an appropriate dosage.

Watch your Vitamin C intake. While too much can upset your stomach, the right amount helps your body combat infection and reduce swelling.

Vitamin C can boost your immune system, which is very important when you’re recovering.

Zinc

Zinc is essential to heal wounds and keep your immune system strong post surgery.

Discuss with your physician your zinc requirements. The correct dose varies by individual, and excessive intake can cause issues such as nausea or mineral interference.

Try to include more zinc-rich foods like beans, nuts and seeds. If you require more, your doctor may recommend a supplement.

Zinc additionally brings down the risk of infection as it assists your body to build new cells and combat germs.

Probiotics

Probiotics keep your gut healthy, and that can low a lot during recovery.

Post surgery, your digestive system may stall or become unsettled. Probiotics can ease the process and avoid constipation or diarrhea.

You could consume yogurt or kefir, or a supplement if your physician approves.

A good gut frequently implies your body can take in nourishment more effectively, which aids in your recovery speed.

Arnica Montana

Arnica Montana for swelling and bruising occasionally.

As always, speak with your healthcare provider before trying Arnica, especially if you take other medications.

Others tap Arnica on as a recovery plan booster.

Natural alternatives such as Arnica can play well with other recovery measures.

Your Doctor Dialogue

Open talk with your doctor is key before any surgery. Supplements and vitamins can combine with anesthesia or other medications, increasing the risk of complications. Review each pill and powder, not just what’s scripted. Even standard herbal mixes and simple vitamins can alter your body’s response during surgery. Be prepared to ask specific questions about what you’re on, and be prepared to provide a complete list. This allows your doctor direct you on what to discontinue, what to continue, and how to remain safe.

Create a List

• Multivitamins (A, C, D, E, K)
• Herbal products (ginseng, St. John’s wort, echinacea)
• Fish oil, omega-3, flaxseed
• Vitamin supplements (B12, folic acid)
• Iron, calcium, magnesium, zinc
• Over-the-counter pain relief (ibuprofen, aspirin)
• Prescription drugs

Present this list to your doctor. This allows them to detect anything that could cause complications, such as blood thinners or supplements that impact clotting. Update your list if you switch brands, doses, or begin something new. Take it to each pre-op appointment or call, and have it convenient for any last minute queries. With a clear inventory, your doctor can screen for dangers and formulate a safe strategy.

Ask Questions

• Which supplements should I stop before surgery?
• How many days/weeks before should I discontinue them?
• Could any of my vitamins or herbals cause bleeding or interfere with anesthesia.
• Can I take my usual medications on the day of surgery?
• When can I safely resume my supplements after surgery?

If anything on your list isn’t clear, say so. Some, like herbal supplements, should cease at least two weeks prior. Don’t just guess–get them in writing if you need to. It’s clever to discuss side effects or what concerns you. Questions keep you and your doctor on the same page, which keeps you safer.

Follow Instructions

Don’t deviate from the plan your doctor provides about discontinuing supplements. This is not a guideline—it reduces the chance of bleeding, blood pressure fluctuations, or medication confusion in the operating room. Write down or reminder when to stop. Your work really matters here. Sticking to the plan is a key piece of a well-oiled machine and a gentle launch into recovery.

Other Considerations

Review the “Surgery Guide” your doctor hands you.

Plan for someone to drive you home.

Arrange for support the first night.

Expect to feel a bit groggy after surgery.

Conclusion

Physicians typically have you discontinue certain vitamins and supplements prior to surgery. Certain pills, however, can thin blood or slow healing. Usually, though, physicians want you to discontinue these roughly one to two weeks prior to surgery. Certain vitamins such as E or fish oil, however, can cause issues. Not all pills behave in the same manner. The kind of surgery and your health account. A brief discussion with your doctor helps sort things out. Clear plans perform best. Get off supplements before surgery. Good prep helps speed up your healing and cut risks. To prepare for surgery, contact your care team. Straightforward conversations keep it clean and safe.

Frequently Asked Questions

Do I need to stop taking vitamins before surgery?

Well, yes, a lot of docs will recommend stopping vitamins before surgery. Certain supplements may cause excessive bleeding or interfere with anesthesia. Heed your own doctor’s instructions for your unique case.

Which vitamins and supplements should I stop before surgery?

Generally, you want to discontinue vitamin E, fish oil, herbal supplements and high-dose multivitamins. These can interact with surgery or recovery. Double check with your doctor for your own list.

How long before surgery should I stop taking supplements?

Most physicians recommend stopping supplements 1–2 weeks pre-surgery. This provides your body time to detox them. It’s best to always ask your surgeon for specific timing based on your health and the operation.

Can stopping vitamins before surgery help prevent complications?

Yes, stopping certain vitamins and supplements before surgery can minimize risks such as excessive bleeding, anesthesia interference, or infection. This enhances your safety and aids your body in recovery.

Is it safe to restart vitamins after surgery?

Typically, you can resume vitamins post-surgery as authorized by your physician. They’ll inform you when it’s safe based on your healing and any medications.

What if I forget to stop taking a supplement before surgery?

Inform your surgical team early. They will weigh any risks and make a determination on what is best. Make sure you bring a comprehensive supplement list to your pre-surgery appointment.

Should I discuss all supplements with my doctor before surgery?

Yes, always inform your doctor of any supplements and vitamins you take. This allows them to schedule the most secure care for you and prevent any potential interactions or problems.