
Good
Slate
$35.99
Slate Milk High Protein Milk Shake by Slate earns an R3 Score of 7.7/10, rating "very good" among food & nutrition products. Our research analyzed safety (8.0/10), efficacy (8.0/10), and value (7.0/10) using 1,000+ data points from peer-reviewed studies, regulatory databases, and real-world testing.
Common questions answered by our research team
Yes, Slate Milk High Protein Milk Shake by Slate has good safety credentials with a Safety Score of 8.0/10 based on our analysis of ingredients, certifications, and regulatory compliance. Our research methodology evaluates potential toxicity, allergen risks, and safety testing data.
Source: Auto-generated from product data
Slate Milk High Protein Milk Shake has an R3 Score of 7.7/10. This score is calculated from three weighted factors: Safety (40%), Efficacy (30%), and Value (30%). Our methodology analyzes 1,000+ data points from peer-reviewed studies, FDA databases, and real-world testing.
Source: Auto-generated from product data
At $35.99, Slate Milk High Protein Milk Shake has a Value Score of 7.0/10. While the product performs well in other areas, you may find better value alternatives in our food & nutrition reviews.
Source: Auto-generated from product data
Slate Milk High Protein Milk Shake ranks well in our food & nutrition category with an R3 Score of 7.7/10. View our full Food & Nutrition rankings to see how it compares to alternatives on safety, efficacy, and value.
Source: Auto-generated from product data
Slate Milk High Protein Milk Shake is manufactured by Slate. At Raised on Research, we independently evaluate all products regardless of brand reputation, focusing solely on scientific evidence and real-world performance data.
Source: Auto-generated from product data
Last updated: November 26, 2025
Overall
Safety
Efficacy
Value
Lactose-free, high-protein chocolate milk with 20g protein and no added sugar. Filtered milk that tastes like a milkshake.
Calculated using category-specific weights for food & nutrition products.
Ingredient toxicity, allergen risk, regulatory compliance
Nutritional value, ingredient quality, bioavailability
Cost per use, durability, comparable alternatives
Why these weights?
Food products prioritize safety (50%) due to allergen risks and potential contamination, with nutrition quality (30%) and value (20%).
Brand: Slate Category: Food & Nutrition
Slate has reinvented chocolate milk for adults who want protein without the sugar bomb. Using ultrafiltration technology (the same process used for Fairlife), Slate concentrates the protein while removing lactose and reducing sugar. The result: 20g of protein in a drink that actually tastes like a chocolate milkshake, not a chalky protein shake.
For parents looking for a convenient protein source that doesn't taste "healthy," or kids who need post-workout recovery, Slate fills a gap in the market.
Slate uses real milk—just filtered and concentrated. No artificial sweeteners (sweetened with monk fruit and allulose), no artificial flavors or colors. The ultrafiltration process is mechanical, not chemical.
Concerns addressed: Lactose-free but contains milk proteins—not suitable for milk allergies. Monk fruit and allulose are well-tolerated natural sweeteners. No aspartame or sucralose.
For protein delivery, Slate is effective: 20g of complete dairy protein per can with all essential amino acids. The protein is naturally occurring from milk, not added whey powder, which some find easier to digest.
Taste is subjective but generally praised—it genuinely tastes like chocolate milk rather than a protein supplement. The ultrafiltration removes the "thin" quality of typical skim milk.
At $4-5 per can, Slate is expensive compared to regular chocolate milk ($0.50) or DIY protein shakes ($1-2). But it's competitive with RTD protein shakes like Fairlife Core Power ($3-4) and more convenient than mixing powder.
Cost per gram of protein: ~$0.20 Comparable alternatives: Fairlife Core Power ($3.50, 26g protein), chocolate milk + whey ($1-2)
Slate is a premium convenience product that delivers genuine protein in a genuinely tasty package. It's not the most economical protein source, but for grab-and-go situations where taste matters, it's one of the best options available. Great for kids who need protein but reject "health food."
Best for: Convenience-focused protein needs, post-workout recovery, picky eaters who need protein, on-the-go families, lactose-intolerant chocolate milk lovers.
Skip if: Budget is a priority, you're fine with protein powder, or you have a milk protein allergy (not just lactose intolerance).
Evidence supporting our analysis
USDA database confirms milk protein is complete protein containing all essential amino acids.
Usda→USDA FoodData Central: Milk Protein ContentAllulose has minimal effect on blood glucose and is generally recognized as safe by FDA.
PubMed→Allulose Safety and MetabolismUltrafiltration effectively removes lactose while concentrating milk proteins without chemical treatment.
PubMed→Ultrafiltration and Lactose RemovalFDA has no objection to monk fruit extract GRAS status for use as a sweetener.
FDA→FDA GRAS Notice: Monk FruitNo similar products from Slate found