SlimFast High Protein Smoothie Mix Review
Included for completeness as a mass-market reference point. This is a meal replacement shake, not a protein supplement — 11g sugar, soy protein isolate, maltodextrin, sunflower oil. Only 20g protein a
High Protein Smoothie Mix. Our #1 rated protein after testing.
High Protein Smoothie Mix
Included for completeness as a mass-market reference point. This is a meal replacement shake, not a protein supplement — 11g sugar, soy protein isolate, maltodextrin, sunflower oil.
Evident Ratings
High Protein Smoothie Mix
Based on hands-on testing + review analysis Compared across protein brands
What We Found
Our concerns
No third-party testing or certification
Contains gums (Gum Arabic, Cellulose Gel, Xanthan Gum)
Contains natural flavors
Contains soy lecithin
Our Verdict
Included for completeness as a mass-market reference point. This is a meal replacement shake, not a protein supplement — 11g sugar, soy protein isolate, maltodextrin, sunflower oil.
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SlimFast
High Protein Smoothie Mix
Independently researched and scored by EvidentLow confidence
Background
Legacy weight loss brand (est. 1977). Now owned by Glanbia. Positions as meal replacement rather than sports nutrition. Declining cultural relevance as consumers move toward higher-protein, lower-sugar options.