Protein Bar or Shake: Which Option Works for You?

The choice depends on composition and intended use. Compare two specific products, because neither bars nor shakes have a uniform nutritional profile.

What should you compare on the label?

If a bar lists values per 100 g, convert them to the package weight. For a shake, distinguish grams of powder from grams of protein.

What about polyols?

If polyols such as maltitol or sorbitol appear in the ingredients, consider your tolerance. A review found that they can cause dose-dependent gastrointestinal symptoms. This does not mean every product causes discomfort in everyone. Lenhart & Chey, 2017

How can you choose practically?

For a day spent traveling, consider access to water and preparation facilities. At home, compare the finished drink using the ingredients you actually add.

Do not choose solely by the prominent protein figure on the packaging. Read the full serving information and directions.

Frequently asked questions

Is a bar always higher in calories?
Not necessarily. Compare specific servings and the finished preparation.

Can I use both?
Yes, provided both are included in your overall dietary intake.

Which one is compulsory after training?
Neither. Protein requirements can also be met through food. Jäger et al., 2017

References

• Lenhart A., Chey W. D. (2017). A Systematic Review of the Effects of Polyols on Gastrointestinal Health and Irritable Bowel Syndrome.
• Jäger R. et al. (2017). International Society of Sports Nutrition Position Stand: protein and exercise.