Why It Matters
The ratio of lymphocytes to monocytes (LMR) is a measure of systemic inflammation. (source, source)
LMR captures the dynamic interplay between adaptive immune surveillance (lymphocytes) and innate inflammatory response (monocytes). A declining LMR suggests that monocyte-driven inflammation is outpacing the body's lymphocyte-mediated regulatory capacity, an early signal that systemic inflammatory burden may be compromising recovery and adaptation. (source)
Low Lymphocyte/Monocyte Ratio: Elevated Inflammatory Burden
A low lymphocyte/monocyte ratio can stem from physiological factors related to immune function and bone marrow, where these cells are produced. Nutritionally, deficiencies in essential nutrients crucial for immune health like vitamin C can also influence this ratio. (source, source, source)
Potential Performance Impact:
- Suppressed adaptive immune function that increases vulnerability to infection during training
- Elevated monocyte-driven inflammation that impairs tissue repair and recovery timelines
- Compromised immune surveillance that may allow chronic low-grade inflammation to persist
- Reduced lymphocyte proliferation that weakens the body's ability to mount targeted immune responses
Optimization
Prioritize glutamine-rich foods: Consumption of glutamine has been shown to increase lymphocytes. (source) Glutamine is the primary source of energy for lymphocytes to increase in number. (source)
Protocol: Consume at least one serving of foods high in glutamine at each meal daily. One serving examples: Beef (lean cuts) (3.5 oz), Chicken (3.5 oz), Pork (3.5 oz), Eggs (3 large eggs), Walnuts (1 oz)
Prioritize sleep: Sleep is associated with increased lymphocytes. (source) Sleep allows the body to recover, helping to reduce oxidative stress and cellular death which negatively affect lymphocyte levels. (source, source)
Protocol: Strive to get 8 to 10 hours of sleep for optimal recovery and adaptation.
Supplement with glutamine: Supplementation with glutamine has been shown to increase lymphocytes. (source) Glutamine is the primary source of energy for lymphocytes to increase in number. (source)
Protocol: Consume two to three 5 g servings of glutamine daily.
High Lymphocyte/Monocyte Ratio: Immune Imbalance
A high lymphocyte/monocyte ratio can be influenced by physiological factors related to the immune system, as lymphocytes and monocytes play crucial roles in defending the body against infections and inflammation. From a nutritional standpoint, factors such as a diet rich in antioxidants and essential nutrients can support a healthy immune response, potentially influencing this ratio. (source, source, source)
Potential Performance Impact:
- Overactive lymphocyte response that may reflect chronic immune activation or autoimmune tendencies
- Relatively suppressed monocyte function that impairs innate immune clearance and tissue remodeling
- Disrupted immune cell balance that compromises the body's coordinated response to training stress
Optimization
Prioritize foods high in anthocyanins: Anthocyanins promote optimal levels of monocytes. (source) Anthocyanins are a type of flavonoid that inhibit the adhesion of monocytes to blood vessel walls, which results in increased circulating levels of monocytes in the blood. (source)
Protocol: Consume at least two servings of anthocyanin-rich foods daily. One serving examples: Blackberries (3/4 cup), Blueberries (1 cup), Tart Cherries (1 cup), Strawberries (8 medium strawberries), Red Grapes (1 cup)
Exercise at high intensity: High-intensity exercise has been shown to increase monocytes. (source) HIIT training leads to an acute spike in monocyte production in response to exercise-induced stress. (source)
Protocol: Follow a structured program ensuring at least 75 minutes of 75% Max Heart Rate or greater weekly.
Supplement with elderberry: Elderberry promotes optimal levels of monocytes. (source) Elderberry contains anthocyanins that inhibit the adhesion of monocytes to blood vessel walls. (source) Further, elderberry triggers the release of anti-inflammatory cytokines and stimulates an increase in immune cells like monocytes. (source)
Protocol: Supplement with at least 600 mg of elderberry.
