By The Grain Factory | Food Science & Nutrition

Full-fat dairy has long been accused of promoting inflammation, worsening eczema and contributing to chronic health conditions.

Whole milk, butter and cheese are frequently grouped together as inflammatory foods because they contain saturated fatty acids.

But does consuming full-fat dairy actually increase inflammation in humans?

And is there sufficient scientific evidence to support the claim that dairy causes eczema?

When we examine human clinical trials, systematic reviews and dermatological guidelines, the evidence tells a more nuanced story.

Current human clinical research does not support the blanket claim that full-fat dairy is inherently inflammatory. Nor does eczema, by itself, establish that someone should eliminate dairy from their diet.

However, the distinction between systemic inflammation, food allergy and eczema is essential.

1. What Does It Mean for a Food to Be Inflammatory?

Inflammation is a normal biological response that protects the body against infections, injuries and harmful stimuli.

However, persistent low-grade systemic inflammation is associated with conditions such as obesity, insulin resistance, type 2 diabetes and cardiovascular disease.

To determine whether dairy increases systemic inflammation, researchers measure biomarkers in the blood.

These commonly include:

An important distinction is that experiencing bloating or digestive discomfort after drinking milk does not automatically mean that systemic inflammation has occurred.

Likewise, an allergic reaction to milk proteins is not equivalent to the chronic low-grade inflammation measured in most nutritional intervention studies.

2. A Review of 52 Clinical Trials Challenges the Dairy-Inflammation Claim

A systematic review published by Bordoni and colleagues in 2017 examined 52 clinical trials investigating dairy consumption and inflammatory responses [1].

The researchers developed an inflammatory scoring system to evaluate results across multiple inflammatory biomarkers.

Their analysis found an overall weakly anti-inflammatory profile associated with dairy consumption.

When participants were separated according to health status, the researchers observed an important difference:

Individuals with metabolic disorders generally demonstrated favourable inflammatory responses (less inflammation or no worsening of inflammation), whereas individuals with cow’s milk allergy showed pro-inflammatory responses.

The researchers also examined different dairy categories.

Both low-fat and high-fat dairy products were associated with favourable inflammatory scores in the studies reviewed.

These findings challenge the assumption that the presence of dairy fat necessarily makes a food inflammatory.

However, this review included multiple types of dairy, including fermented products. Therefore, its overall results cannot be attributed exclusively to whole milk, butter or other non-fermented dairy products.

The study supports the conclusion that dairy is not universally inflammatory, rather than proving that every full-fat dairy product is anti-inflammatory.

3. What Does Research Specifically Say About Full-Fat Dairy?

A systematic review published by Ulven and colleagues in Advances in Nutrition in 2019 evaluated 16 randomised clinical studies involving healthy adults and people with metabolic abnormalities [2].

The researchers investigated the effects of milk and dairy products on inflammatory biomarkers.

The overall findings did not demonstrate a pro-inflammatory effect in healthy individuals or those with overweight, obesity, metabolic syndrome or type 2 diabetes.

Importantly, the review discussed studies involving dairy foods containing substantial amounts of saturated fatty acids.

In the longer-term interventions involving healthy adults, the researchers found no evidence that consuming these dairy foods increased circulating inflammatory markers.

This is scientifically important because saturated fat is frequently used as the main justification for labelling full-fat dairy inflammatory.

Yet controlled human studies have not consistently demonstrated the inflammatory response that such claims would predict.

Nevertheless, the number of trials specifically isolating full-fat, non-fermented dairy remains limited.

The most defensible interpretation is that available evidence does not demonstrate that full-fat dairy consistently increases systemic inflammatory biomarkers in adults who tolerate it.

4. Does Saturated Fat in Whole Milk Automatically Cause Inflammation?

Whole cow’s milk contains approximately 3–4% fat by weight, depending on its composition.

A substantial proportion of this fat consists of saturated fatty acids.

However, assessing the inflammatory effects of whole milk solely through its saturated fat content overlooks the complexity of the food.

Whole milk contains:

• Casein and whey proteins

• Calcium and phosphorus

• Vitamin B12 and riboflavin

• Saturated and unsaturated fatty acids

• Milk fat globule membranes

• Other naturally occurring milk components

These nutrients exist within a complex food structure known as the dairy food matrix.

The biological response to saturated fat may depend partly on the food in which it is consumed.

Consequently, the effects of whole milk cannot automatically be assumed to be identical to those of isolated saturated fatty acids.

The 2019 review by Ulven and colleagues discussed evidence suggesting that dairy foods high in saturated fatty acids did not consistently increase circulating inflammatory biomarkers [2].

However, this does not mean saturated fat is irrelevant to health.

Its effects on LDL cholesterol and cardiovascular risk are separate questions that must be evaluated independently.

A neutral effect on inflammation does not establish that unlimited full-fat dairy consumption is beneficial.

5. What Happens After a High-Fat Dairy Meal?

Some studies investigate inflammation immediately after eating a high-fat meal.

This is known as the postprandial period.

High-fat meals can sometimes produce temporary changes in circulating inflammatory biomarkers.

However, a high-fat meal is not necessarily equivalent to a meal containing full-fat dairy.

Researchers have compared high-fat dairy meals with high-fat non-dairy meals to investigate whether dairy produces a distinct inflammatory response.

In the clinical research discussed by Ulven and colleagues, a comparison involving a high-fat dairy meal, a high-fat non-dairy meal supplemented with milk and a high-fat non-dairy control meal found no differences in IL-6, TNF-α or endotoxin between the meal conditions [2].

These findings suggest that dairy did not produce a uniquely greater inflammatory response under those experimental conditions.

This distinction matters.

An inflammatory response observed after a high-fat meal should not automatically be attributed to full-fat dairy unless the study design specifically isolates dairy as the relevant variable.

6. What About People With Obesity or Metabolic Syndrome?

People with obesity or metabolic syndrome may already experience elevated inflammatory biomarkers.

This makes them an important population for investigating the effects of dairy consumption.

The systematic review by Ulven and colleagues found no overall pro-inflammatory effect of dairy consumption among the metabolically unhealthy populations studied [2].

A separate meta-analysis by Moosavian and colleagues in 2020 evaluated 11 randomised controlled trials involving 663 participants [3].

The pooled analysis reported reductions in selected inflammatory biomarkers with higher dairy consumption.

These included CRP, IL-6 and TNF-α.

However, the apparent benefits were not statistically significant when the researchers restricted their analyses to crossover trials.

This suggests that results may depend on study design and population characteristics.

Importantly, these studies evaluated different dairy products and cannot establish that full-fat, non-fermented milk alone produces the same effects.

Nevertheless, the findings do not support the assumption that dairy must automatically worsen systemic inflammation in people with metabolic abnormalities.

7. Does Full-Fat Dairy Cause Eczema?

This is one of the most frequently misunderstood claims surrounding dairy consumption.

Eczema, also known as atopic dermatitis, is a chronic inflammatory skin condition.

It involves several interacting biological mechanisms, including:

• Impaired skin-barrier function

• Genetic susceptibility

• Immune-system dysregulation

• Environmental irritants and allergens

• Changes in skin microbial communities

Eczema is not simply caused by consuming inflammatory foods.

Although food allergy can contribute to eczema symptoms in some individuals, food allergy is not the underlying cause of most eczema.

There is insufficient evidence to conclude that consuming full-fat dairy causes eczema in otherwise healthy, non-allergic individuals.

Furthermore, the clinical evidence on systemic inflammatory biomarkers cannot, by itself, prove that dairy has no effect on eczema severity.

These are different health outcomes and must be investigated separately.

8. Cow’s Milk Allergy Does Not Mean Dairy Is Inflammatory For Eeveryone

Cow’s milk contains proteins that may trigger immune responses in susceptible individuals.

The major protein groups include caseins and whey proteins such as β-lactoglobulin and α-lactalbumin.

In IgE-mediated cow’s milk allergy, the immune system produces antibodies that recognise specific milk-protein structures.

Exposure can trigger symptoms including hives, vomiting, wheezing and, in severe cases, anaphylaxis.

Some individuals also experience delayed, non-IgE-mediated allergic responses.

In children with clinically relevant cow’s milk allergy, dairy consumption may contribute to eczema flares.

However, the presence of milk proteins does not mean that those proteins trigger inflammatory reactions in everyone.

This distinction was also reflected in the 52-trial review by Bordoni and colleagues, which reported pro-inflammatory responses among milk-allergic participants despite generally favourable inflammatory findings in other groups [1].

A food can be nutritionally appropriate for most individuals while still provoking genuine allergic reactions in a susceptible minority.

9. Does Removing Dairy Improve Eczema?

A Cochrane systematic review investigated dietary exclusion for the treatment of established atopic eczema [4].

The review included nine randomised controlled trials involving 421 participants.

Six of these studies investigated egg or milk exclusion.

The researchers found no convincing evidence that routinely eliminating cow’s milk and eggs improved eczema in participants who had not been selected based on confirmed food allergy.

The authors also highlighted limitations in study quality.

These findings suggest that avoiding dairy does not necessarily improve eczema when there is no established milk allergy.

More recent clinical guidance has reached a similar conclusion.

The 2023 Joint Task Force guidelines on atopic dermatitis, published in Annals of Allergy, Asthma & Immunology, conditionally recommend against routine elimination diets for managing eczema [5].

The recommendation reflects limited evidence of benefit and concerns about nutritional consequences and other potential harms.

Japanese clinical practice guidelines published in English in 2025 likewise advise against eliminating a food merely because it is suspected of causing eczema, unless its contribution has been established [6].

These recommendations do not mean that food allergy should be ignored.

Rather, they support targeted evaluation instead of unnecessary dietary restriction.

10. Why Is Dairy Often Blamed When Eczema Flares?

Eczema commonly fluctuates over time.

Symptoms may worsen because of changes in weather, sweating, skin irritation, infections, stress or exposure to environmental allergens.

If someone consumes dairy shortly before an eczema flare, it can be tempting to conclude that dairy caused the reaction.

However, timing alone does not establish causation.

To determine whether cow’s milk allergy contributes to eczema, clinicians consider the patient’s history, symptoms and appropriate allergy investigations.

Skin-prick tests and serum-specific IgE tests can help identify sensitisation, but positive results alone do not establish a clinical food allergy.

When appropriate, a medically supervised oral food challenge may be needed.

The American Academy of Dermatology advises that food-allergy evaluation may be relevant in children with moderate-to-severe eczema that remains uncontrolled despite appropriate treatment, or when there is a convincing history of an immediate food reaction [7].

Therefore, eczema should not automatically be interpreted as evidence that dairy is harmful.

11. Is Full-Fat Dairy Safe for Healthy Individuals?

For healthy individuals who tolerate milk, ordinary consumption of full-fat dairy can form part of a balanced diet.

Whole milk provides high-quality proteins, calcium, phosphorus and other nutrients.

Current clinical evidence does not demonstrate that full-fat dairy consistently increases systemic inflammatory biomarkers [1,2].

However, it is important not to confuse the absence of a demonstrated inflammatory effect with proof that dairy is harmless in every respect.

Individual nutritional needs, energy intake, saturated fat intake, blood lipid levels and existing medical conditions still matter.

People with diagnosed cow’s milk allergy must avoid milk-containing products unless advised otherwise by their treating clinician.

Those with lactose intolerance may experience gastrointestinal symptoms after drinking ordinary milk, although lactose intolerance is not the same as milk-protein allergy.

The scientific evidence supports a balanced conclusion: full-fat dairy is not inherently inflammatory, but its suitability depends on individual tolerance and overall health circumstances.

12. The Grain Factory’s Perspective

At The Grain Factory, we believe that nutritional recommendations should be based on the quality of scientific evidence rather than broad assumptions about entire food groups.

Full-fat dairy is frequently labelled inflammatory because it contains saturated fat.

Yet controlled human research does not consistently demonstrate an increase in systemic inflammatory biomarkers following dairy consumption.

Likewise, eczema should not automatically be attributed to dairy.

While cow’s milk allergy can contribute to eczema symptoms in susceptible individuals, routine dairy elimination is not supported as a general treatment for eczema.

This distinction is particularly important for parents and individuals making decisions about food avoidance.

Eliminating an entire food group without a clear medical indication may unnecessarily restrict dietary variety and important nutrient sources.

Despite direct human evidence demonstrating superior anti-inflammatory effects remains limited, we remain steadfast in the use of organic milk where cattle are fed with a nutritious diet primarily composed of fresh grasses harvested at peak ripeness.

Final Thoughts

Full-fat dairy is not inherently inflammatory.

Human clinical evidence challenges the assumption that consuming whole milk and other full-fat dairy products automatically increases systemic inflammation.

Likewise, current evidence does not establish full-fat dairy as a general cause of eczema.

The important exception is clinically relevant cow’s milk allergy, in which immune responses to milk proteins can produce genuine allergic symptoms and contribute to eczema flares.

Rather than asking whether dairy is universally inflammatory, we should ask:

Does this particular individual have a clinically demonstrated adverse response to dairy, and what does the available evidence actually show?

Because in nutrition science, the distinction between association, causation and individual susceptibility matters.

 

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Scientific References

[1] Bordoni, A., Danesi, F., Dardevet, D., Dupont, D., Fernandez, A. S., Gille, D., dos Santos, C. N., Pinto, P., Re, R., Rémond, D., Shahar, D. R., & Vergères, G. (2017). Dairy products and inflammation: A review of the clinical evidence. Critical Reviews in Food Science and Nutrition, 57(12), 2497–2525.

https://doi.org/10.1080/10408398.2014.967385

[2] Ulven, S. M., Holven, K. B., Gil, A., & Rangel-Huerta, O. D. (2019). Milk and dairy product consumption and inflammatory biomarkers: An updated systematic review of randomized clinical trials. Advances in Nutrition, 10(Suppl. 2), S239–S250.

https://doi.org/10.1093/advances/nmy072

[3] Moosavian, S. P., Rahimlou, M., Saneei, P., & Esmaillzadeh, A. (2020). Effects of dairy products consumption on inflammatory biomarkers among adults: A systematic review and meta-analysis of randomized controlled trials. Nutrition, Metabolism and Cardiovascular Diseases, 30(6), 872–888.

https://doi.org/10.1016/j.numecd.2020.01.011

[4] Bath-Hextall, F. J., Delamere, F. M., & Williams, H. C. (2008). Dietary exclusions for improving established atopic eczema in adults and children. Cochrane Database of Systematic Reviews, (1), CD005203.

https://doi.org/10.1002/14651858.CD005203.pub2

[5] Chu, D. K., et al. (2024). Atopic dermatitis (eczema) guidelines: 2023 American Academy of Allergy, Asthma and Immunology/American College of Allergy, Asthma and Immunology Joint Task Force on Practice Parameters GRADE- and Institute of Medicine-based recommendations. Annals of Allergy, Asthma & Immunology.

https://www.sciencedirect.com/science/article/pii/S1081120623014552

[6] Saeki, H., et al. (2025). English version of clinical practice guidelines for the management of atopic dermatitis 2024. The Journal of Dermatology.

https://doi.org/10.1111/1346-8138.17544

[7] American Academy of Dermatology Association. (n.d.). Can food fix eczema?

https://www.aad.org/public/diseases/eczema/childhood/treating/food-fix