Beware Extreme Low Carbohydrate Diet May Speed Your Ageing and do More Harm

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Best Weight loss Nutritionist in Delhi

Warns Dietician and Nutritionist Avni Kaul

People following a low-carb diet has become a fashion. Post the popularity of keto, low-carb diet is the new trend of most of the people who try to lose their weight. But all the body shift that we are witnessing with this new diet may not be all that safe. A low-carb diet can speed ageing and lead to a shorter life span also. And it is true.

Nutritionist Avni Kaul warns that a low-carb diet is effective in decreasing visceral fat and halting blood sugar spike but it has to be clearly monitored by the doctor or a nutritionist.

Like the weight loss, people increasingly follow ‘diet trends’ fads that are endorsed on social media by celebrities, there is a constant rise in eating disorders as well as a number of other health-related problems, which not many of you are not aware of.

You need to understand that carbohydrates are essential to maintain the energy levels up.

Here Delhi’s top nutritionist Avni Kaul talks about a low carbohydrate diet may speed your ageing and do more harm.

Fatigue And Sluggishness

Carbohydrates are the major source of energy fuel for your body. The body burns carbohydrates to produce energy and if you follow a diet that is very low in carbs, then you disallow the body from that source. You will feel sluggishness, fatigue, light-headedness, headaches, and weakness as some of the side-effects of your low-carb diet. Frequent light-headedness is an indication that your carb intake levels are dangerously low.

Constipation

Good carbohydrates in the form of fiber are also essential for digestive health. This is because fiber which is digested slower than other nutrients acts as food for the healthy bacteria present in your gut and in its absence the gut flora becomes imbalanced. Constipation is one of the ugliest side-effects of low-carb diets. Your bowel movement is disturbed due to the lack of soluble and insoluble fiber in your diet. Some other digestive side-effects are bloating and diarrhea.

Mood Swings

A hungry mind gets easily irritable. People on low-carb diets feel irritated more frequently and experience anxiety and mood swings. This happens due to the decrease of glucose in your body. Lower motivation and the depressive mood is another dangerous side-effect of having a low-carb diet.

Higher Risk Of Diabetes

Low-carb diets increase the risk of developing Type-2 diabetes This happens because diets low in carbohydrates and rich in fat can decrease the body’s response to insulin – the hormone that regulates blood sugar levels.

Both excessive consumption and abandoning carbohydrates from your daily meals could be bad for your health. The idea of maintaining a healthy weight and mind is to find a middle-path between following carb-rich and low-carb diets. Also, choose good quality carbs like complex carbohydrates like whole wheat, quinoa, steel cut oats , rice, Indian millets like ragi, bajra, jowl, amaranth instead of simple and processed carbs, to remain healthy.

Increase In Hunger Pangs

Low-carbohydrate diets highers the frequency of hunger pangs, as carbohydrates are the most fulfilling nutrients in your meals. This is due to the fact that they are digested slower than other nutrients and hence, keep your blood sugar levels under control. This is one of the reasons why low-carb diets are not very viable, as people tend to cheat on them more often.

Low Carb Diet Can Speed Up Ageing

There was a study conducted in Japan on some mice. In which a group of mice was given a low carb diet while the other group got a well-balanced diet. It was observed that the mice on the low-carb diet, in which they got only 20% of total calories from carbohydrates, was seen as equivalent to a human being skipping staples in three regular meals.

They also found that the low-carb diet group died an average of 8 to 9 weeks ahead of the group on a balanced diet. 

Important Disclaimer & Medical Policy

This content is for informational and educational purposes only. It does not constitute medical or dietary advice. Please consult Dietician Avni Kaul or a qualified healthcare professional before making any changes to your diet or nutrition plan.

Picture of  Written by Avni Kaul

Written by Avni Kaul

I am Avni Kaul, a nutritionist & Best Dietitian In Delhi with a B.Sc. and M.Sc. in Food and Nutrition from the University of Delhi, and 12 years of experience, including my work at Max Hospital’s Endocrinology Department as a Dietitian and Diabetes Educator. In 2018, I started my clinic, Nutri Activania in Saket, New Delhi, specializing in women’s health, including pre-conception, pregnancy nutrition, postpartum recovery, and hormonal conditions like PCOS, fertility, menopause, and endometriosis.

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Nutri Activania –Dietitian Avni Kaul | Top Nutritionist in Delhi
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When looking for someone to help you through your health journey, I think it is very important that the people who are guiding you do not approach it with any judgement. That is one of the best things I find about Avni & her team. They don't make food your enemy but rather teach you how to do it right, spending a lot of time in understanding your likes and dislikes and really personalising it to your need. You can be sure that you are being looked after individually. Alongside that, they also offer is a wealth of knowledge but also a delicate approach towards your journey. This is the main reason why I would recommend Avni to everyone.
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I really like the services provided by Avni and her team. She and her team make sure that my preferences are accommodated into the diet they provide. They provide a specifically tailored plan that works around my daily routine and helps me achieve overall results. Highly recommend Avni and her services.
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In March 2025, I had a scare with a sudden spike in my sugar levels. That was my wake-up call—I knew it was time to take my health seriously. I wasn’t looking for a quick fix but a long-term, sustainable lifestyle change. That’s when a close friend introduced me to Avni and NutriActivania. I reached out to Avni, and we discussed my goals and what I hoped to achieve. She and her team immediately put together a plan tailored specifically for me. The best part was how flexible it was—no drastic cuts, no extreme measures. Instead, they focused on equipping me with the skills and habits I needed to make lasting lifestyle changes. They listened to what worked for me, especially in terms of food preferences, and built a plan around my life rather than expecting me to adjust to theirs. That level of customization is what made it easy for me to stay committed. Each week, they share a personalised food plan and always check in before finalizing it. Avni has been incredibly supportive—always available to answer questions and consistently encouraging me to stay on track. Over the last seven months, I have lost 9 kgs. My sugar levels are back to normal, my cholesterol has dropped, and most importantly, I feel healthier. I eat better, and I am far more mindful about what I consume. I truly believe they’ve given me the tools to make better choices and have been instrumental in helping me reshape my lifestyle. Thank you, Avni and team. Thank you for being part of my journey and for helping shape it in the best way possible.
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During my first pregnancy, I was worried because I didn’t know how to give proper nutrition to my baby. Someone suggested Nutritionist Avni Kaul, so I joined her program and followed her diet plan throughout my pregnancy. She gave me a healthy meal plan that also allowed me to enjoy the foods I liked. My baby girl was born healthy and at a good weight. After pregnancy, I struggled with my weight, so I joined Avni Kaul’s post-pregnancy weight loss program. My weight went from 65 kg to 56 kg. I truly thank Nutri Activania and Nutritionist Avni Kaul for their support and guidance during my pregnancy and weight loss journey.
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’ve been consulting Dietician Avni Kaul at Nutriactivania, and I’m genuinely seeing positive changes in myself. Her guidance is very practical, easy to follow, and tailored exactly to my routine. She always checks in, motivates me, and explains everything clearly. My energy levels have improved, my eating habits feel much more balanced, and I’m gradually seeing visible results in my weight and overall health. I really appreciate her support and expertise. Highly recommended!
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