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.
