Whey

How it works

Risks & contraindications

Interactions

Comparisons

Evidence quality

Highlighted claims

• Whey protein isolate is particularly problematic for keto because it contains no fat to buffer its protein-driven insulin spike. — The HUGE Mistake Counting Carbs on Keto (Ketogenic Diet)
• Whey protein has a utilization rate of only 17%, with approximately 83% being wasted or burned as fuel. — Best Protein for Recovery: Utilization Rates Compared
• Whey protein delivers only 17% utilization despite its popularity in bodybuilding supplements. — Best Protein for Recovery: Utilization Rates Compared
• Combining whey protein with maltodextrin creates a maximum insulin trigger because maltodextrin scores higher than pure glucose on the Glycemic Index. — The HUGE Mistake Counting Carbs on Keto (Ketogenic Diet)
• Avoiding the whey and maltodextrin combination is recommended because it maximizes insulin response and builds insulin resistance, working against a ketogenic approach. — The HUGE Mistake Counting Carbs on Keto (Ketogenic Diet)
• The majority of whey protein not utilized for building is either filtered out through the kidneys or converted to glucose. — Best Protein for Recovery: Utilization Rates Compared
• Whey triggers an insulin response more strongly than almost any other food because it is extremely high in protein and very low in fat. — American Cheese Is Not Even Cheese
• Athletes intentionally use whey combined with maltodextrin to spike insulin post-workout for its anabolic effect, but this accelerates insulin resistance over time. — The HUGE Mistake Counting Carbs on Keto (Ketogenic Diet)
• Whey is one of the most insulinogenic foods available and poses a concern for anyone managing blood sugar or insulin resistance. — American Cheese Is Not Even Cheese