Is a Free From Diet a Healthier Diet?

Posted on August 19, 2019 by Sally-Anne Turner

There's a lot of 'hype' around sticking to a free-from diet for weight reasons as opposed to health reasons, such as an allergy or intolerance, but is a free-from diet really a healthier way of eating and a guaranteed way to lose weight? This question has become increasingly relevant as supermarket shelves overflow with gluten-free, dairy-free, and allergen-free alternatives, and social media influencers promote elimination diets as the secret to better health and rapid weight loss.

So many of us have now boycotted gluten and turned our backs on dairy under the belief we're doing the best thing for our bodies, but are we actually helping our waistlines and our insides by avoiding key food groups, or could we be doing ourselves more harm than good? The reality is far more nuanced than many people realise, and understanding the science behind food allergies, intolerances, and nutritional requirements is essential before making dramatic dietary changes. At Bodyline Clinic, we've supported over 100,000 patients with their health and wellness goals over the past 18 years, and we've seen firsthand how confusion about diet trends can actually hinder rather than help weight loss efforts.

The free-from-movement has exploded in recent years, with market research showing that the UK free-from-food market is now worth billions of pounds annually. What started as a necessary provision for people with genuine medical conditions has evolved into a lifestyle choice for millions who believe that eliminating certain foods will lead to better health, clearer skin, more energy, and effortless weight loss. But does the science support these claims? And more importantly, could following a free from diet without medical necessity actually be counterproductive to your health and weight management goals?

Food Allergies & Intolerances in the UK

Some people have no choice but to avoid ingredients such as gluten or milk for medical reasons. A report by the Food Standards Agency predicts around 2 million people in the UK have a food allergy of some kind, including around 600,000 with coeliac disease, an autoimmune disease in which gluten must be avoided. These figures represent genuine medical conditions where consuming certain foods can trigger immune responses ranging from mild discomfort to life-threatening anaphylaxis.

It's crucial to understand the difference between food allergies and food intolerances, as these terms are often used interchangeably but represent very different physiological responses. A food allergy involves the immune system and can cause severe reactions, including difficulty breathing, swelling, hives, and, in extreme cases, anaphylactic shock. Food intolerances, on the other hand, typically involve the digestive system and cause symptoms like bloating, gas, stomach pain, and diarrhoea but are not life-threatening. Coeliac disease sits somewhere between these two categories as an autoimmune condition where gluten consumption causes the immune system to attack the lining of the small intestine.

For those with food allergies, intolerances and other food-related medical conditions, there is no option but to avoid all traces of their problem food. The 14 most common allergens are:

1. Cereals containing gluten (wheat, barley and rye)
2. Milk
3. Eggs
4. Crustaceans
5. Fish
6. Peanuts
7. Soya
8. Tree Nuts
9. Celery
10. Mustard
11. Sesame
12. Sulphur Dioxide
13. Lupin
14. Molluscs

These 14 allergens must by law be clearly labelled on all packaged foods sold in the UK, and restaurants and cafes must provide allergen information for non-packaged foods. This legislation, known as Natasha's Law, was strengthened following tragic cases where individuals with severe allergies consumed foods without adequate allergen labelling. The law recognises the serious, potentially fatal consequences of allergen exposure for those with genuine allergies.

So, for those allergic to the above, they have to carefully avoid eating these ingredients as well as avoid foods that may contain them or have been subject to cross-contamination, but if you have no reason to avoid them, is there any benefit in doing so? This is where the conversation becomes more complex and where many people make decisions based on misconceptions rather than medical evidence.

The challenge lies in distinguishing between medically necessary dietary restrictions and those adopted for perceived health benefits. Many people report feeling better after eliminating certain foods, but this improvement may be due to several factors unrelated to the food itself. For instance, when someone cuts out gluten, they often simultaneously reduce their intake of processed foods, refined carbohydrates, and high-calorie baked goods, which naturally leads to feeling better and potentially losing weight. The question is whether it's the absence of gluten specifically that's beneficial or simply the overall improvement in diet quality.

Self-diagnosis of food intolerances has become increasingly common, with many people eliminating foods based on symptoms they believe are related to specific ingredients. However, digestive symptoms can have numerous causes, including stress, irregular eating patterns, insufficient fibre intake, dehydration, or underlying medical conditions that have nothing to do with food allergies or intolerances. Without proper medical testing, it's impossible to know whether your symptoms are truly caused by a specific food or by something else entirely.

Pros and Cons of Eating a Free-From Diet

The main foods we see people ditching from their diets for 'health' nowadays are gluten, milk and eggs, with many people self-diagnosing digestion problems associated with these ingredients or simply believing you can lose weight quicker by not eating them. This trend has been fuelled by celebrity endorsements, social media influencers, and popular diet books that promise dramatic health transformations through elimination diets. However, the scientific evidence supporting these claims for people without diagnosed allergies or intolerances is surprisingly limited.

It is quite widely known that cutting out entire food groups from your diet can deprive the body of essential nutrients required for normal functionality, growth and development, and this is the same with avoiding dairy and gluten. The human body has evolved over thousands of years to derive nutrition from a diverse range of foods, and each food group provides unique combinations of vitamins, minerals, and other beneficial compounds that work together to support optimal health.

Gluten is found in most carbohydrates, such as pasta and bread, both of which provide the body with slow-releasing energy to help you through the day. Gluten is also a great source of fibre to help with bowel health, lowering cholesterol and controlling blood sugar. Whole grain products containing gluten are particularly beneficial, providing B vitamins, iron, magnesium, and selenium alongside their fibre content. These nutrients play crucial roles in energy metabolism, immune function, and cellular health.

The fibre content in whole grain, gluten-containing foods is particularly important for weight management. Fibre helps you feel fuller for longer, regulates blood sugar levels to prevent energy crashes and cravings, supports healthy gut bacteria, and aids in digestive health. When you replace gluten-containing whole grains with gluten-free alternatives, you often lose this valuable fibre content unless you're very careful about choosing fibre-rich gluten-free options.

Dairy is also something that has a whole host of health benefits, such as being a source of both vitamin D and calcium, which are required for strong teeth and bones, and vitamin D is even linked to mental health. Eggs are a fantastic source of protein, particularly if you're vegetarian, so by avoiding these three food types, you're making it more difficult to gain all these nutrients and associated health benefits, as the free-from alternatives generally don't hold the same amounts of nutrients.

Calcium is particularly important for women, especially as they approach and go through menopause when bone density naturally decreases. Adequate calcium intake throughout life helps build and maintain strong bones, reducing the risk of osteoporosis and fractures in later years. Dairy products provide calcium in a highly bioavailable form, meaning your body can easily absorb and use it. While some dairy-free alternatives are fortified with calcium, the absorption may not be equivalent, and many people don't realise they need to shake the carton thoroughly before pouring to ensure they're getting the added nutrients that settle at the bottom.

Vitamin D, often called the sunshine vitamin, is naturally found in very few foods, making dairy products an important dietary source for many people. Vitamin D deficiency is surprisingly common in the UK, particularly during winter months when sunlight exposure is limited. This deficiency has been linked not only to bone health problems but also to mood disorders, immune dysfunction, and increased inflammation. If you're eliminating dairy without carefully planning alternative sources of vitamin D, you may be putting yourself at risk of deficiency.

Eggs provide high-quality protein containing all nine essential amino acids in the proportions needed by the human body. They're also rich in choline, important for brain health, and contain lutein and zeaxanthin, antioxidants that support eye health. For those following a medical weight loss programme, eggs can be an excellent food choice as they're highly satiating, helping you feel full and satisfied while keeping calorie intake moderate. Eliminating eggs without a medical reason means missing out on these benefits and potentially making weight management more challenging.

Avoiding food groups can also lead the body to become resistant to them when you do eat them. For example, if you cut gluten out of your diet for health or weight reasons, when you do eat it, the body is likely to find it more difficult to digest, and you are likely to experience digestive symptoms. These aren't necessarily due to an intolerance or allergy but purely because the body isn't used to those foods.

This phenomenon occurs because your gut bacteria adapt to the foods you regularly consume. When you eliminate a food group, the bacteria that help digest those foods may decrease in number. Upon reintroduction, your gut may temporarily struggle to process the food efficiently, leading to bloating, gas, or discomfort. This creates a self-fulfilling prophecy where people eliminate a food, feel uncomfortable when they try it again, and conclude they must be intolerant to it, when in reality they've simply altered their gut microbiome through prolonged avoidance.

The psychological impact of restrictive eating patterns shouldn't be underestimated either. Following a highly restrictive diet can lead to increased anxiety around food, social isolation when eating with others becomes complicated, and even disordered eating patterns in some individuals. Food is not just fuel; it's also an important part of social connection, cultural identity, and pleasure. Unnecessarily restricting your diet can diminish these important aspects of life without providing any actual health benefits.

Furthermore, when you eliminate major food groups, meal planning becomes more complicated and time-consuming. You may find yourself eating a less varied diet overall, which can lead to nutritional gaps and food boredom. Dietary variety is important not just for nutritional completeness but also for supporting a diverse gut microbiome, which is increasingly recognised as crucial for overall health, immune function, and even mental wellbeing.

Calories – Free From VS Regular

Gluten free is often thought of as being the healthy option but how do some key foods compare in terms of calories, fat, sugar and salt? The assumption that free from automatically means healthier or lower in calories is one of the most persistent myths in modern nutrition, and examining the actual nutritional content of these products reveals some surprising truths.

Looking at bread, while the gluten-free option is slightly lower in calories, it contains significantly more fat and salt. The increased fat content is necessary to improve the texture and moisture of gluten-free bread, as gluten provides the structure and chewiness we expect in bread. Without it, manufacturers must use additional fats and binding agents to create a palatable product. The higher salt content helps enhance flavour in a product that would otherwise taste quite bland without gluten's contribution to taste and texture.

The crumpet comparison is particularly striking, with the gluten-free version containing 26% more calories per crumpet. If you're following a weight loss programme and counting calories carefully, switching to gluten-free versions of foods could actually be working against your goals. The extra 26 calories per crumpet might not seem significant, but if you're eating two crumpets for breakfast several times a week, those calories add up quickly over time.

The pasta comparison is perhaps the most dramatic, with gluten-free penne containing more than double the calories of regular pasta per 100g. This substantial difference could have a significant impact on your daily calorie intake if pasta is a regular part of your diet. For someone trying to maintain a calorie deficit for weight loss, unknowingly consuming double the calories from what they perceive as a "healthier" option could completely derail their progress.

The milk comparison shows that unsweetened soya milk is lower in calories and sugar than semi-skimmed dairy milk, which might seem like a win for the dairy-free option. However, it's important to note that the sugar in dairy milk is naturally occurring lactose, not added sugar. The calcium content is similar, but only because the soya milk has been fortified with added calcium. Natural dairy milk contains calcium in a highly bioavailable form along with vitamin D, vitamin B12, and other nutrients that work synergistically to support bone health and overall nutrition.

So, we can see that a lot of gluten free alternatives are in fact higher in calories, as well as almost always being higher in fat and salt and for dairy, the amount of calcium per 100ml of dairy free milk is also less than your regular semi-skimmed. It's also worth noting that many dairy-free milk alternatives, particularly oat milk and rice milk, can be significantly higher in carbohydrates and sugar than dairy milk, which can impact blood sugar levels and hunger management.

As well as the nutritional value, free from foods are often filled with additives and unusual ingredients to try and improve the taste, many of which aren't necessarily very good for us if we don't need to be eating them. For example, a supermarket own-brand wholemeal bread is made using wholemeal wheat flour, water, yeast, dextrose, palm oil and a flour treatment agent whereas a similar gluten free brown loaf from the same supermarket is made using rice flour, tapioca starch, maize starch, potato starch, bamboo fibre, rapeseed oil, dried egg whites, psyllium husk powder, humectant, yeast, stabilisers, sugar, salt, apple extract, buckwheat flakes, preservatives and cocoa powder.

This ingredient list comparison is revealing. The regular bread contains six ingredients, most of which are recognisable whole foods. The gluten-free version contains at least seventeen ingredients, many of which are processing aids, stabilisers, and additives needed to mimic the texture, taste, and shelf life of regular bread. While these additives are generally recognised as safe for consumption, they represent a higher degree of processing, which contradicts the common perception that free from foods are more natural or wholesome.

The irony is that many people choose gluten-free products because they want to eat more "cleanly" or avoid processed foods, yet they end up consuming products with longer ingredient lists and more additives than the conventional versions. If your goal is to eat minimally processed, whole foods, eliminating gluten without medical necessity may actually be counterproductive to that aim.

The Cost of Being Free From

As well as the health implications of unnecessarily sticking to a free from diet, there's also a massive impact on your bank balance as free from food is simply so expensive. This financial burden can be particularly challenging for families or individuals on tight budgets who believe they need to follow a free from diet for health reasons when they actually don't have a medical necessity to do so.

A supermarket 800g loaf of wholemeal bread is just 59p while a gluten free loaf of brown bread, by the same supermarket is £1.80 for just 550g. A 1kg bag of penne pasta from a supermarket own brand costs just £1 whereas a 500g bag of gluten free penne pasta from the same shop is £1.00, meaning you get half the amount for the same price. These price differences add up significantly over time, potentially costing hundreds of pounds extra per year for a family regularly purchasing free from alternatives.

If you fancy a treat, you can pick up a 262g pack of McVities chocolate Hobnobs for £1.50, whereas the gluten free version by McVities will cost you £2.19 for a 150g pack, which contains approximately 8 biscuits. What about chocolate digestives? A supermarket own brand pack of gluten free chocolate digestives costs £1.30 for a 200g pack, whereas the same supermarket sells their regular own brand chocolate digestives for 60p for 300g. You're paying more than double the price for significantly less product when choosing the gluten-free option.

Free from foods cost more to produce due to the ingredients and manufacturing methods, so although you usually get less, you'll probably pay more, so it really is a serious price to pay if you don't need to! Manufacturers must use more expensive alternative flours and starches, implement strict protocols to prevent cross-contamination, often run dedicated production lines, and conduct regular testing to ensure products meet gluten-free standards. These additional costs are passed on to consumers.

For people with genuine coeliac disease or severe allergies, these higher costs are unavoidable and represent a necessary health expense. However, for those following a free from diet by choice rather than medical necessity, the extra expenditure provides no health benefit and diverts money that could be spent on other nutritious foods, health services, or quality of life improvements. If you're concerned about your weight and considering working with a medical weight loss clinic, the money saved by not unnecessarily buying free from products could be invested in professional support that actually helps you achieve your goals.

The financial impact extends beyond just the food itself. When eating out, many restaurants charge extra for gluten-free options or have limited free from choices, which can make dining out more expensive and less enjoyable. Travelling can also become more complicated and costly when you need to seek out specialty free from products in unfamiliar locations.

So, is a free from life a healthy life? Not really if you don't need to be eating that way! Foods that are naturally gluten free such as rice, lentils and pulses are all great additions to your diet but as for purposely going gluten free for no reason, it doesn't really hold any benefits! In fact, a diet rich in naturally gluten-free whole foods like fruits, vegetables, lean proteins, legumes, and gluten-free whole grains like quinoa and brown rice is excellent for health and weight management, but this is true whether or not you also include gluten-containing foods.

The key distinction is between eating naturally gluten-free whole foods as part of a varied, balanced diet versus specifically seeking out processed gluten-free alternatives to conventional products. The former is a healthy eating pattern that anyone can benefit from; the latter is an unnecessary expense and potential nutritional compromise for those without medical need.

If you think you might have an issue with a food group, then be sure to see your GP for tests before cutting the food out so you can ensure you're doing it properly! This is crucial advice that many people overlook in their rush to self-diagnose and eliminate foods. Proper medical testing for conditions like coeliac disease must be done while you're still eating gluten, as the tests look for antibodies and intestinal damage that occur in response to gluten consumption. If you've already eliminated gluten before testing, the results may be inaccurate, potentially leading to a missed diagnosis of a serious autoimmune condition.

Your GP can arrange appropriate testing for coeliac disease through blood tests and, if necessary, an endoscopy with biopsy. For suspected lactose intolerance, breath tests are available. For other food intolerances, your doctor may recommend keeping a detailed food diary or trying an elimination diet under medical supervision, where foods are systematically removed and then reintroduced while monitoring symptoms. This structured approach is far more reliable than self-diagnosis and ensures you're not unnecessarily restricting your diet.

At Bodyline Clinic, with over 18 years of experience supporting patients with their health and wellness goals, we understand that sustainable weight loss isn't about following restrictive fad diets or eliminating entire food groups without medical reason. Our medically supervised weight loss programmes focus on creating personalised, balanced eating plans that provide all the nutrients your body needs while helping you achieve a healthy calorie deficit. We've helped over 100,000 patients across the UK achieve their weight loss goals through evidence-based approaches that don't require unnecessary dietary restrictions.

Our experienced clinical team recognises that everyone's relationship with food is unique, and we work with you to develop strategies that fit your lifestyle, preferences, and health needs. Whether you're interested in weight loss injections, appetite suppressant medications, or nutritional guidance and support, we provide comprehensive care tailored to your individual circumstances. We also understand that some patients may have genuine food allergies or intolerances that require dietary modifications, and we can work within those constraints to develop an effective weight management plan.

If you're confused about whether a free from diet is right for you, or if you're struggling to lose weight despite following what you believe to be a healthy diet, we can help. Our clinics across the Northwest of England and nationwide telehealth consultation services make it easy to access expert support wherever you are in the UK. Book a consultation at Bodyline Clinic to discuss your weight loss goals and learn about the evidence-based approaches that actually work for sustainable, healthy weight management.

The bottom line is that unless you have a diagnosed medical condition requiring the elimination of certain foods, following a free from diet is unlikely to benefit your health or weight loss efforts and may actually hinder them. A balanced, varied diet that includes all food groups in appropriate portions, combined with regular physical activity and professional support when needed, remains the gold standard for achieving and maintaining a healthy weight. Don't let diet trends and marketing hype lead you away from the nutritious, affordable, and satisfying foods that can support your health goals. If you're ready to take a science-based approach to weight loss without unnecessary restrictions, contact Bodyline Clinic today to learn how we can support your journey to better health.