Ask Our Keto Nutritionist: Fasting, Ammonia, and Food Allergies

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Have questions you wish you could ask a nutritionist who “gets” keto?

We’ve partnered with a tried and true keto nutritionist who’s dedicated to helping people live their best lives through the ketogenic diet. What’s more, to best support our ketogenic community, each week, we’ll answer your questions!

Please note that we’re not doctors, so if you have any specific questions regarding your own health, please consult with your trusted medical partner. 

Everyone seems to be fasting. Do I need to fast to lose weight?

To answer your question, no. Fasting is a strategy that has shown to offer many health benefits including weight loss. Many people obtain these benefits by fueling off of fat instead of sugar with just the ketogenic diet alone. If you are feeling awesome and meeting your personal health goals, then feel free to leave it out.

See the article Keto and Intermittent Fasting—Go Together Like Bacon & Eggs. 

Why do I smell ammonia in my nose after working out?

We ask nutritionist about fasting, ammonia, and food allergies - stretching before or after a workout

There are multiple reasons this could be happening, but specifically when one is new and un-adapted to a low-carbohydrate diet, when exercising, the muscles are short on glucose for fuel and the body is breaking down and metabolizing protein instead. This, in turn, results in the ammonia smell.

Other potential reasons for that ammonia smell:

· New to keto and not yet adapted to utilizing fat for fuel
· Too much protein intake
· Not enough fat
· Not enough fluid intake – dehydrated
· Not enough vegetables
· Low potassium – FYI, veggies have a lot of potassium
· History of kidney or liver conditions – consult with your doctor

Athletes participating in intense workouts should consider increasing carbs just a bit at night, which will supply some glycogen to use as energy during physical activity. Many athletes are able to consume generous amounts of carbohydrate (50-100 gm/day) and maintain ketosis, as exercise has been shown to improve insulin sensitivity and utilizes carbs as fuel more efficiently.

How can I follow Keto when allergic to tree nuts, peanuts, and bass?

We ask nutritionist about fasting, ammonia, and food allergies -bags of almonds

You’re in luck! All of these can be avoided on the Ketogenic diet and replaced with other forms of fish, protein, vegetables, and healthy fats! Be sure to browse all of our recipes here for yummy ideas.

Have questions you’d like to ask a keto nutritionist? Let us know!

Join The Discussion

Comments 7

  1. Bonnie

    I have a question for her…I know this is a bit specific, but I’d really like her input. I’m raising my 2 yr old daughter on keto and would like her to be able to eat eggs. She tolerates a small amount of egg fine, but if she gets too much she will have a strong vomiting reaction approximately 8-12 hours later. She has seen an allergist who has been of little help. Her skin allergy test was positive for an egg allergy and her blood test was negative for an egg allergy. Is there anything we can/should do, or do we just need to wait and pray that she outgrows it?

    • Amber (Hip2Keto Sidekick)

      Egg allergies are very common. Her reaction suggests she should stay FAR away from eggs. I’d also revisit this topic with your physician for advice.

    • Mel

      I’d see another allergist. Allergies are serious and you should find a dr that cares about your daughters well being.

    • Jane Harris

      You should get you daughter tested Ted for MTHFR, CBS, COMT, MAO and other gene alleles that indicate difficulties metabolizing tyrosine, cysteine, sulfur, B vitamins, D, vitamins, pheylalaline. If she has any of these gene issues, knowing them now will be a huge hand up for so many things for the rest of her life. Find a integrative medicine doc and get him to administer DOCTOR’s tests both for levels snd genes. It will save her having complications like ciliac disease, SIBO, and can alert you to issues of insuffients neurotransmitters resulting in anxiety, depression, ADHD, and liver, kidney and heart disease later in life. In the meantime signs to look for: particular issues with caffeine, chocolate, garlic, onion, beans, Brussels sprouts, cauliflower, kale, spinach.

  2. connie


  3. Lissette

    I’ve been on Keto for almost a week and a half. About the 6th day I got some red blotches on my face mostly which are itchy. I read something about it but can you please confirm this is due to me going on this Keto diet? I’ve never had anything like this on my face. 🙁

    • Amber (Hip Sidekick)

      Oh bummer! SO very sorry to hear about that, Lissette! Be sure to check in with your doctor to be certain on what may be causing that. Hoping it clears up soon!

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