Does A Protein Drink Count As Taking Medication ‘With Food’?

In our latest question and answer, the pharmacist discusses whether or not a protein drink would be considered taking a medication with food.

3 min read Updated Jun 2026 18,978 views
Does A Protein Drink Count As Taking Medication ‘With Food’?
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Mike asked

Does a protein drink count as food when taking medication such as ibuprofen?

Sep 30, 2022
The quick answer
  • A protein drink counts as food when your medication label says to take it with food, as long as your specific medication doesn't interact with high protein diets.
  • Protein shakes can help reduce nausea and stomach upset from medications like ibuprofen.
  • It's important to check with your doctor or pharmacist about your specific medication, since some drugs like warfarin shouldn't be taken with high protein foods.
A quick summary of Dr. Brian Staiger, PharmD's full answer below, condensed by AI from that answer only (not from any outside source). The pharmacist's answer is the source of record.
Medications in this answer — tap to explore

Answer

Hello and thanks for reaching out! There are quite a few considerations to take into account when talking about food intake with medications, but as a general rule of thumb, yes, protein drinks would certainly be considered a 'food' if your medication label states to take it with food.

Why Should Some Medications Be Taken With Food?

By and large, there are two reasons why a medication may be recommended to take with food:

  • Food may reduce the risk of side effects, such as nausea, stomach cramping, and diarrhea (antibiotics recommended to take with food are a good example here)
  • Food may affect the absorption or metabolism of a drug (for example, a high-fat meal significantly increases the absorption of the antipsychotic drug Latuda).

In regard to what is considered a 'food', a protein shake would certainly apply here, as long as your specific drug doesn't interact with a high protein diet (as some do, which I talk about in the next section) or recommends a specific food.

When it comes to preventing nausea-related side effects, protein shakes are a good choice. Now, some individuals are sensitive to protein shakes themselves (as they often contain milk products), but if you're not, protein, again, is a good choice as a 'food'.

Protein can significantly delay what is known as 'gastric emptying'. It can make you feel fuller longer and prolongs how long food stays in the stomach. If your medication doesn't interact with protein, and is considered safe to take 'with food', there are no issues considering your protein shake a good food option.

Food - Drug Interactions

I won't get too into the weeds regarding drug-food interactions, as there are many. I simply want to point out that there are plenty of medications that should not be taken with food, or at least separated from certain foods.

Since this question deals with protein, let's show some examples of high protein-drug interactions.

One good example here is the antihypertensive drug propranolol. Several studies have shown that taking the drug with a high protein meal can increase absorption, which may increase the risk of side effects.

Another good example is with the blood thinner warfarin. Studies show a high-protein diet can raise albumin levels in the blood, which can in turn decrease the international normalized ratio (INR). This can significantly reduce the effectiveness of the medication, putting you at risk for blood clots.

It is very important to talk to your doctor or pharmacist about whether or not your medication should be taken with food, and if there are any foods to avoid.

Nevertheless, as mentioned, as just a general statement, protein shakes are okay as food to take with medication, as long as there aren't specific recommendations for you to follow.

Final Words

You mentioned ibuprofen specifically in your question, and that is certainly a drug where taking it with food can help reduce the risk of some stomach-related side effects. A protein drink is perfectly fine to take with ibuprofen.

Thanks for your question and reach back out anytime!


References & sources
  1. Influence of food on the bioavailability of drugs — PubMed
  2. How food and fluid affect drug absorption: results of initial studies — PubMed
  3. Assessing Food Effects on Oral Drug Absorption Based on the Degree of Renal Excretion — PubMed
  4. Food-Drug Interactions — PubMed
Glossary — Terms in This Answer
Absorption
The process by which a medication enters the bloodstream and becomes available to work in your body.
Metabolism
The chemical processes your body uses to break down and process a medication.
Antipsychotic
A type of medication used to treat certain mental health conditions like schizophrenia.
Gastric emptying
The process by which food moves from your stomach into your small intestine for digestion.
Antihypertensive
A medication used to lower high blood pressure.
Blood thinner
A medication that reduces the blood's ability to clot and helps prevent dangerous blood clots.
Albumin
A protein in the blood that carries various substances throughout your body.
International normalized ratio (INR)
A blood test measurement that shows how long it takes your blood to clot, used to monitor blood thinner effectiveness.
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Dr. Brian Staiger, PharmD
About the pharmacist

Dr. Brian Staiger, PharmD

Clinical Pharmacy

Doctor of Pharmacy, board certified clinical pharmacist (BCPS), American Herbalist Guild, Medication Therapy Management certified

Brian Staiger, PharmD, BCPS, is a licensed pharmacist with more than 13 years of experience across retail pharmacy, clinical pharmacy, medication safety, pharmacy program development, and healthcare administration. He is the founder of HelloPharmacist.com, where he helps patients...

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