What are Sirtfoods? And can eating them help you lose weight?

What are Sirtfoods? And can eating them help you lose weight?

Back in 2015 we were introduced to the concept of ‘sirtfoods’ and their potential for promoting weight loss. The Daily Mail covered the story of a woman who claims she saw significant reductions in her body fat by eating more foods known as ‘sirtuin activators’ or sirtfoods. More recently, Adele’s weight loss has been attributed to the Sirtfood Diet. So what are sirtfoods? And can they really help you lose weight and improve your health?



‘Sirt’ is short for sirtuins – a class of proteins in the body that are important for regulating biological pathways that can affect our health and weight. ‘Sirtfoods’ is a term applied to foods that contain naturally occurring compounds known as polyphenols that have the potential to activate sirtuins.



Research has shown that a very low calorie diet may prolong our lifespan by decreasing the activity of pro ageing pathways as well as encouraging DNA repair. It’s believed that sirtuin activators in food may mimic the same effects as a calorie restricted diet. Sirtuins also have a role in fat metabolism which explains why they may help us to lose weight.



Studies have shown that sirtuin activators can help mobilise our stored fat and increase mitochondria function (the part of a cell that generates energy). They’ve also been shown to regulate insulin production – the hormone that manages the sugar balance in our body and enables us to use the sugars from carbohydrates in our diet as energy. That said, let’s not forget that the woman in the Daily Mail article was also on a 1000 calorie per day diet which may also have something to do with her weight loss! Whilst early research shows that sirtuins could play a role in promoting fat loss, it’s too early to really call them a wonder food.



Sirtuins have not only been been linked to how our bodies metabolise energy, they’re also known to affect the ageing process and the onset of certain diseases. Research into sirtuin activator resveratrol – the beneficial compound in red wine – found that it may help in the prevention and treatment of obesity and help to prevent age related heart and brain deterioration.


It is worth noting that much of the research carried out has looked at supplemented levels of polyphenols much greater than we would find in food alone. It’s still early days so as further research is carried out we will learn more about the positive effects of sirtuin activators and the levels beneficial for health. However, all foods containing sirtuin activators are natural, healthy, plant based foods and you can’t go wrong with increasing these in your diet.



Foods that contain sirtuin activators include: green tea, turmeric, onions, kale, parsley, miso soup, tofu and other soy products, olives and extra-virgin olive oil, blackcurrants, capers, cocoa, dates, walnuts and turmeric.



One of the easiest ways to introduce these foods into your diet is by starting with a smoothie for breakfast. Blend together a scoop of quality protein powder, some unsweetened almond milk, a large handful of blackcurrants and some kale.


Add olives to salads and roasted mediterranean vegetables and swapping less healthy savoury snacks like crisps.


Dress salads with olive oil instead of your usual salad dressing – but it’s best to not cook with olive oil as it can degrade at high temperatures.


Try swapping regular tea for green tea. If you find green tea bitter you can opt for jasmine tea which tends to be milder. Green tea can also be drunk cold so during the summer months, make a pitcher of green tea and add slices of lemon then keep in the fridge.


Miso soup makes a good afternoon snack, you can buy sachets (such as MISO Tasty) or grab it ready made from Pret a Manger or Itsu.


If you are looking to lose weight and want to identify the best dietary approach for you, please do get in touch. We offer a complimentary 25 minute weight loss strategy call with one of our expert nutritionists who will take the time to listen to your challenges and help you identify the right weight loss solution for you.



Ailsa is one of our most experienced practitioners. She specialises in helping clients to lose weight, develop a healthy relationship with food and finally feel comfortable in their skin. Ailsa’s mission is for everyone she works with to enjoy the journey and that working with a nutritionist should not be a punishment, but your access to a new possibility.


Ailsa is not only an experienced weight loss nutritionist, she is also a skilled coach. She helps our clients overcome emotional eating, destructive habits and self-sabotaging behaviours that have prevented successful weight loss in the past. Ailsa has spent years in clinic working with clients who have experienced yo-yo dieting and have discovered that long term weight loss is not just about eating less until you can stand it no longer.


Working with Ailsa you will be comprehensively supported, not only in improving your nutrition and lifestyle, but also your eating habits and your relationship with food. When you work on all these elements together, the results can be truly astonishing.


To enquire about working with Ailsa, please contact us.

Test Nikki is our Practice Manager, managing our team of practitioners and heading up the day-to-day running of the business. Nikki is involved in the strategic development of our practice, coming from a strong business background in town planning. A Florida girl, Nikki relocated to the UK in 2014 with her husband and two children.



Nikki is our Practice Manager, managing our team of practitioners and heading up the day-to-day running of th clinic.


Nikki is involved in the strategic development of our practice, coming from a strong business background in town planning.


A Florida girl, Nikki relocated to the UK in 2014 with her husband and two children.


Stéphanie is a skilled nutritional therapist and functional medicine practitioner with additional training in eating disorders, disordered eating and obesity. She believes that working towards both physiological and mental health is key in achieving optimum wellbeing.


Stéphanie’s personal experience of emotional eating and the ongoing struggle to find the right support led her to combine the science of nutrition with behavioural coaching to motivate and empower her clients. She specialises in helping people who struggle with their weight and their relationship with food. She helps them develop a healthier and more peaceful relationship with food and their bodies.


To enquire about working with Stéphanie, please contact us.


Inna is passionate about supporting women on their journey to improved health and wellbeing. She believes that the solution to effective weight loss does not lie in ever more restrictive diets, but a more sophisticated approach that optimises health and vitality, as well as promoting effective weight loss.


Working with Inna you will benefit from her in-depth knowledge of female health and hormones. She will support you in developing a healthy diet, lifestyle and mindset that ensures you reach your ideal weight and maintain it in the years to come.


Inna is passionate about food with a wide repertoire of delicious healthy recipes and meal ideas to ensure your weight loss journey is as enjoyable as possible!


To enquire about working with Inna, please contact us.



Ania is a firm believer that improving your health and losing weight should be a positive, empowering journey, not one centred around deprivation.


After being diagnosed with two autoimmune conditions in her twenties, Ania spent several years educating herself on the power of food and nutrition. She put it all into practise and changed her diet and lifestyle, reversing her endometriosis and thyroid disease. After experiencing such a significant improvement in her health, Ania had a big desire to help others. She embarked on a four year journey to study nutrition, graduating from the Institute for Optimum Nutrition with distinction.


Ania specialises in autoimmunity and works with clients who have underlying health issues preventing successful weight loss. Her expertise enables her to successfully support our clients with conditions such as hypothyroidsm (underactive thyroid), PCOS and diabetes. 


To enquire about working with Ania, please contact us.