Food With Penicillin


Welcome to the blog Food With Penicillin. As a food writer, I’m always looking for great recipes and ideas. This blog will talk about fun food recipes, restaurant reviews and restaurant trends. Griseofulvin is frequently isolated from corn, wheat, barley, flour, and walnuts (40) and from meat products (27), thus being a potential source for the presence of penicillin in food.

Food With Penicillin

Antibiotics are a common way to fight infections, but many don’t realize there are certain foods to eat while taking antibiotics.

Antibiotic therapy is the first line of treatment for the majority of bacterial infections. Unfortunately, these drugs aren’t without side effects.

Rarely, they can cause a variety of unpleasant symptoms like

  • Bloating
  • Diarrhea
  • Nausea
  • Abdominal pain

Although these side effects are usually mild, transient, and harmless, they can become severe and signal the need for a change in medication.

Sometimes, patients find they can control these side effects, or even eliminate them completely, with just a few basic diet changes.

In other cases, it’s the food causing the problem and removing it from their diet is enough.

In this post, we’ll tell you about six of the best foods to eat while taking antibiotics – and the four you should always avoid, too.

Why Do Antibiotics Cause GI Side Effects?

During times of good health, your body maintains a balance of good and bad bacteria in your intestines.

The natural ratio of good bacteria to bad is set at just the right rate for both to coexist without causing you any harm.

When you take antibiotics, the very drugs you take to fight off an infection also target the good bacteria in your G.I. tract, too.

The result?

Your intestines lose the delicate balance maintained between both sides, leading to gastrointestinal upset and other unpleasant symptoms.

The Best Foods to Eat While Taking Antibiotics

Good news: certain foods  support good bacteria levels in your body.

These are the best foods to eat while taking antibiotics. By eating them, you reduce or eliminate the side effects common to antibiotic treatment.

Most of these contain either probiotics or prebiotics.

A few of the most common foods to eat while taking antibiotics include:

  • Prebiotics — Prebiotics are the building blocks for healthy gut bacteria. When you ingest them, they help to make your gut a friendly place for more healthy bacteria to grow. Find them in kefir, yogurt, and even fortified cereals.
  • Probiotics: — Like prebiotics, probiotics feed good bacteria, helping them to grow and flourish. Good sources include supplements, kefir, yogurt, and milk.
  • Yogurt and Fermented Milk — Both yogurt and fermented milk (kefir) increase the presence of Lactobacilli (a critical element of digestion) in the intestines. They also significantly curb overflow of bad bacteria at the same time.
  • Kimchi and Fermented Soy Products — Kimchi and fermented soy products are loaded with probiotics and prebiotics. They’re also rich in another digestion-critical bacteria called Bifidobacteria.
  • Foods High in Vitamin K — Antibiotic treatment can rarely lead to Vitamin K deficiency which may contribute to bacteria imbalances. Get more K by ingesting leafy green vegetables, cauliflower, liver, and eggs.
  • Coconut Oil — This medium-chain triglyceride contains fatty acids, which may help to reduce your risk of developing an antibiotic-related yeast infection. If you’re female, this will be especially helpful to you!

What Foods to NOT Eat While Taking Antibiotics

There are some foods you should avoid while on antibiotics, either because they interfere with absorption or because the combination can make you feel sick.

In most cases, these foods simply interact poorly and make the antibiotics less effective.

Foods to avoid include:

  • Grapefruit — You should avoid both the fruit and the juice of this sour citrus product. It contains compounds that can keep the body from properly absorbing your antibiotics – as well as other medications, too!
  • Excess Calcium — Some studies show that excess calcium interferes with absorption. For best results, stick to fermented dairy products until you are finished with your antibiotics.
  • Alcohol — Mixing alcohol and antibiotics can lead to a host of unpleasant side effects. The most common of these are
    • Increased nausea
    • Abdominal pain
    • Dizziness
    • Heart rate issues. You should avoid alcohol throughout the duration of treatment and for 48 to 72 hours after treatment ends.
  • Sugars and Yeast — For some patients (especially women) antibiotic usage may lead to candida (yeast) infections. Avoid foods high in sugar and yeast to avoid feeding the candida organism. This is especially important if you find you nearly always end up with a yeast infection after a course of antibiotics.

Understanding Mold, Food, and Penicillin Allergies

When mold fungus spores reach the air, they can cause a variety of allergy symptoms like a runny nose, itchy eyes, and coughing. While there are many different types of molds, one common indoor mold is Penicillium, which can cause nasal allergies and asthma in certain people.

If you’ve been diagnosed with a Penicillium mold allergy, you might be wondering if that means you could have a penicillin allergy or food allergies too.

Piece of moldy cheese made with unpasteurized milk which could harbor listeria
xfotostudio / 

Mold Allergy vs. Penicillin Allergy

Having a Penicillium mold allergy doesn’t mean that you’re allergic to the antibiotic penicillin. While penicillin was indeed originally developed from Penicillium mold, people with this specific mold allergy are not at any more risk of developing an allergy to this class of antibiotics than anyone else with a history of allergies.

Risk factors that make it more likely to have a penicillin allergy include:

  • Having a history of allergies
  • Having a family history of drug allergy
  • Having had an allergic reaction to another kind of drug
  • Being exposed to high or prolonged doses of penicillin
  • Having an infection such as human immunodeficiency virus (HIV) or Epstein-Barr virus, which can contribute to allergic drug reactions

Modern-day penicillin antibiotics are produced synthetically and are not contaminated with mold particles.

 Allergy to Penicillin Drugs

Mold Allergies and Food Allergies

It is possible, however, to have related food allergies if you have a mold allergy. Penicillium can be found in certain aged and blue-veined cheeses, such as Roquefort and Camembert. There have been reports of food allergy reactions in Penicillium-allergic people who eat these cheeses and other foods with this mold.

If you have an allergic reaction to mushrooms, it’s more likely that it’s from the mushrooms themselves, but symptoms of oral allergy syndrome have been reported in people with mold allergies who have eaten raw mushrooms. Yeast is another potential food allergen if you have a mold allergy.

You may be wondering how a mold allergy can be related to a mushroom or yeast allergy. The answer is explained by a phenomenon called cross-reactivity.

The Basics of Cross-Reactivity

Cross-reactivity means that there are similar proteins shared between certain foods and certain molds. So if you’re allergic to molds, you may very well react to foods like mushrooms that contain a similar protein.

There is also ample scientific evidence suggesting cross-reactivity between different pollens and raw fruits and vegetables. Likewise, an allergy to latex can predispose people to certain food allergies (mostly fruits and nuts). Doctors have even named this condition the latex-food syndrome.

A Word From Verywell

The big picture here is that while a mold allergy may lead to a food allergy such as yeast or mushrooms, it doesn’t mean you’ll develop allergies to medications like penicillin.

That being said, a history of allergies puts you at a higher risk of developing other allergies, so it is possible for you to have both an allergy to certain molds and a penicillin allergy, but the two are not interconnected—it’s simply a coincidence.

Does What You Eat Affect Antibiotic Effectiveness?

The discovery of antibiotics is arguably one of the great modern medical discoveries.


Image Credit: nokwalai/

However, the over-prescription and improper use of the potentially life-saving drug has increased antibiotic resistance. However, new research has found that what you eat may affect antibiotic effectiveness.

Cranberries and Antibiotic Effectiveness

The epidemic of antibiotic resistance poses a threat to decades of progress in antibiotic use to fight bacterial infections.

The overprescription and overuse of antibiotics in medicine and agriculture have led many to argue that we may be forced to a pre-antibiotic era whereby the risk of developing even minimal infections could be costly. In light of this, it has become vital to maximizing the effectiveness of current antibiotics used.

Recent research working towards this aim has found that cranberries may boost the overall effectiveness of antibiotics. Specifically, the researchers observed that pathogenic bacteria develop increased sensitivity to lower doses of antibiotics when exposed to molecules found in cranberries. Furthermore, resistance to the antibiotics was reduced.

It’s commonly believed that, aside from their antioxidant properties, cranberry consumption is linked to positive health outcomes such as protecting against urinary tract infections (UTIs).

This led the researchers to investigate the molecular properties responsible for fighting several types of bacteria, namely, Escherichia coli responsible for gastro-enteritis, Pseudomonas aeruginosa responsible for pneumonia, and Proteus mirabilis responsible for UTIs.

It was found that cranberries increased bacterial sensitivity through two mechanisms. The extract was considered to alter the mechanism typically used by the bacteria to get rid of the antibiotic as well as increasing the permeability of the bacterial cell wall.

This resulted in the antibiotic being able to penetrate the bacteria more easily, and the bacteria struggling to get rid of the drug. This provides evidence as to why the drug appears to be more effective in lower doses.

The researchers suggested that central to this activity are molecules called proanthocyanidins. There are different types of proanthocyanidins and it’s thought that the molecules work together to achieve the effects observed.

Further tests were carried out to investigate whether the same pattern existed in a preliminary animal model: infected insects. Similar effects were established, necessitating further experiments to identify the active molecules involved.

Implications of the Research

The novel research may prove to be extremely useful in combating antibiotic resistance, as, if the results can be replicating in animals and the active molecules identified, then it would mean fewer dosages of antibiotics will be required in veterinary and human medicine. Conversely, the use of these compounds may help ensure that the antibiotics are more effective in their current dosages and administrations.

Considerations When Taking Antibiotics

Several considerations are recommended to be followed when taking antibiotics than can reduce their overall effectiveness in fighting infections alongside the probability of resistance. Different types of antibiotics come with their own set of requirements and guidelines to follow.

Medications and Antibiotics

Like any drug, antibiotics can interact with any other medications taken. Evidence has shown that specific antibiotics such as rifabutin and rifampicin can impair the effectiveness of some contraceptive pills. If prescribed these forms of antibiotics, then additional contraceptive methods are recommended.

Additionally, research has found adverse effects in those taking some forms of antibiotics alongside anticoagulants. Specifically, cephalosporins have been found to increase the risk of bleeding if taken in addition to blood-thinning drugs such as warfarin.

Food and Drink Interactions with Antibiotics

In general, alcohol should not be consumed while taking antibiotics. Even alcohol in moderation can cause interactions with antibiotics if consumed within 48 hours of each other.

Certain antibiotics such as tinidazole and metronidazole can cause side effects such as headaches, stomachache, nausea and vomiting, and hot flushes if taken with alcohol.

Similarly, it’s recommended that antibiotics are not taken with fruit juices or dairy products, as they can affect the body’s ability to absorb the medication. Instead, it is recommended that the drug is taken with water only.

Furthermore, the influence of dairy consumption on the effectiveness of antibiotics has been researched. It’s recommended that dairy products such as cheese, milk, butter, and yogurt should not be consumed until 3 hours after a dose of antibiotics is taken.

Likewise, juices or supplements containing calcium may also reduce effectiveness. Antibiotics should come with patient education material that gives specific guidance on which foods to avoid and how to take antibiotics.

In some countries, antibiotics can be purchased without a prescription. Antibiotic use in these areas tends to be high, as patients often self-medicate for conditions that are not helped with antibiotics and the increased presence of antibiotics provides a selective pressure for germs to develop resistance.

Studies show that these areas with higher use have higher rates of antibiotic resistance

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