What your tongue says about your internal health, according to a Cornell University longevity doctor

Our tongue may be revealing more about our health than we realise. According to Dr. Vassily Eliopoulos, a longevity expert and physician at Cornell, says that the appearance of our tongue, such as its color, texture, moisture, and even coating, can offer early cues about what is going on inside our bodies. Subtle changes might reflect the internal body imbalances, nutrient deficiencies, before symptoms could occur at any place else. Dr. Eliopoulos emphasises that paying attention to our tongue can support early detection and contribute to a longer, healthier life.

A swollen tongue can result from many factors, from everyday things used or consumed daily to more complex health-related issues. This is often tied to the lymphatic stagnation, fluid retention and low thyroid function (hypothyroid). Other conditions include Infection from bacteria, yeast, or viruses (including oral herpes). Dr. Vass recommends some tests for early detection such as TSH, free T3, Reverse T3, and lymph markers.

Usually, a bright red tongue can indicate several internal health issues, according to Dr. Vassily. It often suggests inflammation or irritation inside the body. Apart from this, it is a clear indication of vitamins, especially Vitamin B12 and folic acid. Doctor Vass recommends some tests, such as CBC, B12, MCV, and Ferritin. A bright red tongue can indicate that you have a vitamin B12 deficiency or an infection called scarlet fever, a Streptococcus bacteria infection in the throat (strep throat) accompanied by a red body rash.

This might be a clear indication of low stomach acid or poor digestion. This coating often reflects an imbalance in the digestive system where the body is not producing enough HCL, which is essential for breaking down food into simpler substances, thereby helping in better absorption of nutrients. Dr. Vass, in his Instagram post, suggests that it could also be candida, fungal overgrowth, or signs of chronic fatigue. Doctor Vass recommends tests such as TIBC, stool panel, and Organic acids, TIBC.

It can be a subtle yet important indicator of underlying internal health issues. It can point towards dehydration, gut inflammation (conditions such as acid reflux or imbalanced gut flora can affect tongue texture), and deficiencies such as B2 (riboflavin) and or B3 (niacin) deficiency. If the fissures are deep, painful or accompanied by burning sensations, Dr. Eliopoulos recommends a professional evaluation, as this could signal a more serious systemic imbalance needing medical attention. Doctor Vass recommends an increase in hydration, B-complex supplements.

While this is a harmless inflammation on the tongue, it affects the surface area. In this condition, the tongue is usually covered with pinkish-white bumps on the tongue. Dr. Vass lists other conditions that might be linked to this tongue condition, such as inflammation, histamine intolerance, immune dysregulation and nutrient deficiencies.
Dr. Vass recommends several tests for the early detection of this condition: CRP, ANA, Vitamin D, and zinc.

In the words of Dr. Vass: Don’t ignore what your tongue is showing you. It can be an early sign of deeper dysfunction, long before it shows up in standard labs. Test deeper if something’s off.