Keto Diet Cheat Sheet 2026

The 30 highest-yield Keto Diet facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. A keto diet app claims to provide 'medical nutrition therapy.' Under US regulations, who is legally qualified to provide medical nutrition therapy? → Only registered dietitian nutritionists (RDNs) under state licensure laws
2. What is 'net carbs' in the context of ketogenic meal planning? → Total carbs minus fiber and sugar alcohols
3. The Keto Certified program requires products to contain no more than how many grams of net carbs per serving to qualify for certification? → 5g
4. Which of the following is the safest approach to exiting a ketogenic diet to avoid metabolic rebound? → Gradually reintroduce complex carbohydrates over several weeks
5. How does the ketogenic diet affect insulin levels? → It keeps insulin levels consistently low
6. Which of the following items is the best magnesium source with low carbs? → Butter
7. Which lab marker should be monitored specifically to detect early kidney stress during long-term ketogenic dieting? → Serum creatinine and eGFR
8. Under DSHEA, what is the legal status of exogenous ketone supplements sold in the US? → They are regulated as dietary supplements with no pre-market approval needed
9. A keto coach discovers their client has been secretly following extreme calorie restriction on top of keto. The ethical first step is to: → Assess for disordered eating and address it directly in the coaching relationship
10. Why is it important to prioritize whole food fats over processed vegetable oils on a ketogenic diet? → Processed vegetable oils are high in inflammatory omega-6 fatty acids
11. Which of the following foods provides the best potassium low-carb sources? → Sardines
12. When tracking macros on keto, which app feature is most important for accuracy? → Barcode scanner combined with a large food database for exact portion logging
13. A keto dieter is experiencing constipation. Which solution is MOST aligned with keto principles? → Increasing water intake, adding magnesium, and eating more low-carb high-fiber vegetables
14. Which of the following beverages is generally acceptable on a ketogenic diet? → Black coffee
15. Which dietary intervention is most effective at breaking a weight-loss plateau on a well-formulated ketogenic diet? → Implementing intermittent fasting alongside keto
16. How does the ketogenic diet typically affect insulin levels? → It lowers insulin levels
17. What is the role of Medium Chain Triglycerides (MCTs) in the ketogenic diet? → They are rapidly converted to ketones in the liver, boosting ketosis
18. A keto coach notices a client has lost weight rapidly and now has a BMI of 17.5. The ethical response is to: → Pause the diet and facilitate medical evaluation
19. What is the proper course of action when an Keto Diet professional witnesses unethical behavior by a colleague? → Report through established channels
20. In Keto Diet certification, what is the primary purpose of regulatory compliance programs? → To ensure adherence to laws and standards
21. A keto dieter wants to make a pizza crust. Which base is the most popular low-carb substitute? → Cauliflower crust
22. When should a keto dieter measure blood ketones for the most consistent, comparable readings? → First thing in the morning in a fasted state
23. A keto practitioner is treating a client who discloses suicidal ideation related to body image and diet failure. The practitioner must: → Immediately follow safe messaging guidelines and connect the client with crisis resources
24. What is the best practice for documenting assessment results in Keto Diet practice? → Document all findings objectively and completely
25. Which professional organization provides evidence-based guidelines most relevant to a dietitian counseling clients on therapeutic ketogenic diets? → Academy of Nutrition and Dietetics
26. What is the most practical way to measure ketosis at home on a daily basis? → Urine ketone strips
27. What does a blood ketone level of 0.5–3.0 mmol/L indicate? → Nutritional ketosis
28. Which approach best demonstrates mastery of standards and regulations in Keto Diet practice? → Applying principles to novel situations with sound judgment
29. A patient on lithium therapy asks about starting keto. The primary safety concern is that ketosis may: → Increase lithium absorption to toxic levels
30. What is 'keto-adaptation' (or 'fat adaptation')? → The body's long-term metabolic shift to efficiently burn fat and ketones as primary fuel