Keto Diet FAQs: 20 Questions Everyone Asks (and Honest Answers)

Starting keto is like walking into a new country where everyone speaks a different language—net carbs, ketosis, macros, MCT oil? You’re not alone. Every beginner has questions (a lot of them), and this post is here to answer the most common ones in the clearest, most supportive way possible. So grab your water bottle, take a deep breath, and let’s walk through it together.

1. What is the keto diet, really?

It’s a low-carb, high-fat, moderate-protein way of eating that shifts your body from burning glucose (from carbs) to burning fat (from your body and food) as its main fuel source. This state is called ketosis.

➡️ New to keto? Read: [Keto for Beginners: Everything You Need to Know Before You Start]

2. Do I have to count calories?

Not at first. Focus on cutting carbs and eating until you’re satisfied—not stuffed. But if your weight loss stalls, tracking calories might help fine-tune your approach.

3. How many carbs can I eat per day?

Most people aim for 20–30g of net carbs per day to stay in ketosis. Net carbs = total carbs – fiber.

➡️ Need help grocery shopping? Read: [The Ultimate Keto Grocery List]

4. Can I eat fruit?

Yes—but only low-sugar fruits like berries. Think raspberries, blackberries, and strawberries in moderation.

5. Is keto safe long-term?

For most healthy people, yes. But if you have underlying health conditions, check with your doctor.

6. What is keto flu and how do I survive it?

Keto flu is your body adapting to fewer carbs. You might feel tired, foggy, or cranky for a few days. Stay hydrated, add electrolytes (salt, magnesium, potassium), and rest. It passes.

➡️ Read this before you start: [Surviving Your First Week on Keto]

7. How fast will I lose weight?

It varies. Many people drop a few pounds in the first week (mostly water), then 1–2 pounds per week after that.

8. Do I have to eat bacon and butter all day?

Nope. Keto can be clean and balanced—avocados, olive oil, salmon, leafy greens, eggs, chicken, etc. You don’t need to drown everything in cheese.

9. What’s the deal with macros?

Macros = macronutrients (fat, protein, carbs). On keto, a general ratio is:

• 70% fat
• 20–25% protein
• 5–10% carbs

➡️ Deep dive here: [Keto Macros Made Easy: How Much Fat, Protein & Carbs You Really Need]

10. What can I drink on keto?

Water, coffee (black or with heavy cream), tea, sparkling water. Avoid sugary drinks and juice. Alcohol? Dry wine or spirits with no mixers.

11. Do I need to exercise on keto?

It helps—but isn’t required. Start with walking, stretching, or whatever you enjoy. Movement helps with energy and fat loss.

12. Is dairy okay?

Yes, if your body tolerates it. Stick to full-fat and unsweetened options like heavy cream, cheese, and plain Greek yogurt.

13. Can I eat out at restaurants?

Totally. Go bunless, swap fries for salad, ask for dressings and sauces on the side. You’ll get better at this with time.

➡️ Read: [Lazy Girl’s Guide to Staying on Keto Without Losing Your Mind]

14. What if I mess up?

You’re human. One slip doesn’t undo your progress. Just get back on track with your next meal. No guilt.

15. How do I know I’m in ketosis?

You might notice:

• Fewer cravings
• More energy
• Mental clarity
• Slight metallic taste in mouth You can also use urine test strips, but your body will tell you more than a stick.

16. Do I need fancy supplements?

Not really. Focus on real food. But magnesium, potassium, and sodium (electrolytes) help with keto flu and energy.

17. Why am I not losing weight even though I’m doing keto?

Could be:

• Eating too many carbs without realizing
• Hidden sugars
• Too many calories
• Not enough movement
• Stress or sleep issues Keep a food log and stay patient.

18. Can vegetarians do keto?

Yes. It takes more planning, but it’s doable with eggs, tofu, nuts, seeds, and dairy.

19. Will keto help with PCOS, diabetes, or hormonal issues?

Many people report improvements in insulin sensitivity and hormone balance, but consult a healthcare provider for medical advice.

20. How do I stay consistent?

• Meal prep simple food
• Don’t overthink it
• Join a support group or follow relatable blogs
• Give yourself grace

➡️ Need structure? Check out the [28-Day Lazy Girl Keto Meal Plan]

Final Thoughts

Starting keto doesn’t mean becoming a new person overnight. It means shifting gently, learning as you go, and treating yourself with kindness through the process. You don’t need to be perfect—you just need to stay curious and keep showing up.

Save this post. Come back to it. And if you ever feel stuck, overwhelmed, or unsure, know this: you’re not alone. You’ve got this.