I'm Doing Intermittent Fasting - Should I Be Keto, Vegan, Low Carb?
15 Dec 2025 · 6 min
Cynthia Thurlow, an intermittent-fasting expert, tells Amber that the diet matters less than bio-individuality. Prioritize protein and healthy fats, then earn carbs by choosing low-glycemic foods like squash and sweet potato over rice and bread. Dial in carbs based on how your body feels.
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I'm doing Intermittent Fasting Should I be keto, vegan? Low carb? This is JJ Virgin, four time New York Times best selling author, celebrity nutrition expert and Fitness hall of Famer. I've been on a lifelong quest for answers to the toughest health questions and now I'm sharing what I found with you. Welcome to Ask the Health Expert. Amber from Instagram asks, I'm doing intermittent fasting. Should I be keto, vegan or low carb? Hey, it's jj and I've got the perfect expert to answer this question. Meet nurse practitioner, nutrition and intermittent fasting expert Cynthia Thurlow. Her TEDx talk on intermittent fasting has been viewed over 5 million times. She's a former varsity field hockey player who's been known to read four to five books at a time. We'll be right back with the answer.
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Common question, Amber, what I would say is, you know, it really is what resonates with you. You know, bio individuality is really key here. And so for some people, they feel great being on a keto diet or a vegan diet or a low carb diet. Obviously I tend to lean heavily towards animal based proteins. So, you know, paleo primal, carnivore, ketogenic diets all have lots of benefits. It's really ultimately what is what makes sure what fuels your body, what allows you to have plenty of energy, to sleep properly, to feel like you have good cognition, like you have, you know, your ability to do your job well, if that's in or outside your home. And so I really would encourage and implore you to spend a little bit of time focusing first and foremost on protein, whether that be plant or animal based, and then adding in some healthy fats and then earning your carbohydrates. I think carbs are really important, especially as we're nearing a point in our lives where carbohydrates become a bigger issue. And so the days of being able to eat whatever you want are long behind you. And so really focusing on good quality carbs and things that I really focus on are squash and sweet potato root vegetables, green leafy vegetables, low glycemic berries, some of the citrus fruits are going to be superior choices to rice and bread and pasta and things like that, where it's a whole lot harder for us to acquiesce to determining that we feel full. You know, we have a higher satiety when we have protein and healthy fats as opposed to carbs. And depending on who you are, some people are more sensitive to their carbohydrates, meaning some people have the ability to consume larger quantities than others. So it requires a bit of fine tuning. And I just come to find this is one of those areas where you really have to do a little bit of detective work, find out what resonates and works best for your body and determine what makes you feel like you're thriving.
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