Living with aligners
Can I drink a protein shake with clear aligners
You should remove clear aligners before drinking a protein shake—clinician guidance says keep aligners out for anything other than plain water, and lab studies show many beverages can stain trays.
- Published
- Sep 9, 2026
- Author
- Smilo Editorial

No — you should remove clear aligners before drinking a protein shake. Clinical patient-care guidance for active clear-aligner treatment advises removing trays for anything other than cool, plain water, and laboratory evidence shows many common beverages can stain or discolor aligner materials. [1, 2]
Quick takeaways
- Remove aligners for anything other than plain water, including protein shakes.
- Lab studies show pigmented drinks (coffee, tea, cola, wine) can cause measurable staining of aligner materials.
- Different aligner materials vary in stain susceptibility; cleaning can reduce but not always fully remove stains. [1, 2]
Why you should remove aligners before a protein shake
Practical patient-care instructions for active clear-aligner treatment say to remove trays for eating and for drinking anything other than cool, plain water. That guidance aims to avoid trapping food or beverage residues against teeth and aligner surfaces. [1]
Although the returned clinical guidance does not specifically list "protein shake," the same concern applies: protein shakes contain sugars, flavorings, colorants and fats that could leave residues under the tray or on the tray surface. [1]
What the laboratory evidence says about staining
In-vitro lab studies of commercial aligner materials show that exposure to pigmented beverages such as coffee, tea, cola and red wine produces measurable discoloration of aligner specimens under immersion protocols. [2, 3]
These studies did not test protein shakes specifically, so they do not directly measure staining from protein-shake exposure. The lab results do, however, demonstrate that beverage composition and material chemistry affect staining risk and that some polymers stain less than others. [2, 3]
Cleaning and practical steps
Laboratory work testing cleaning methods found that some cleaning approaches can reduce staining but may not fully restore original clarity depending on the beverage and aligner material. [4]
Practical steps: remove your trays before drinking a protein shake, rinse your mouth and brush or at least rinse your trays before reinserting them as advised in standard patient-care instructions. [1, 4]
Smilo can help you stick to wear and cleaning routines
If you find removing trays for drinks disrupts your routine, Smilo can help by tracking daily wear time, reminding you when to take trays out and when to switch or clean them, and keeping a simple treatment routine log so you meet prescribed wear goals and remember to clean before reinserting.
Sources
- How to Wear and Care for Clear Aligners - Innova Smiles (orthodontic practice page)
- Color Stability of Various Orthodontic Clear Aligner Systems after Submersion in Different Staining Beverages - Journal article (open access, PubMed Central)
- Comparative Assessment of Color Stability in Four Commercial Clear Aligner Materials Exposed to Common Beverages - BMC Oral Health (PMC)
- Colorimetric and spectrophotometric measurements of orthodontic thermoplastic aligners exposed to various staining sources and cleaning methods - BMC Oral Health (peer-reviewed)
