Why It Matters
The free testosterone-to-cortisol ratio is an indicator of training status and recovery. (source)
Low Free Testosterone/Cortisol Ratio: Catabolic Dominance
A low free testosterone/cortisol ratio is influenced by physiological factors affecting hormone regulation, such as stress levels impacting cortisol production and testosterone synthesis. Inadequate nutrient intake or imbalances, particularly in key micronutrients like zinc and magnesium, also affect hormone levels. (source, source, source, source)
Potential Performance Impact
- Impaired recovery from training
- Muscle breakdown exceeding muscle building
- Elevated stress and fatigue
Optimization
Prioritize high-quality protein. Quality protein intake is associated with increased free testosterone. (source) Complete proteins provide essential amino acids used for repair and muscle protein synthesis, which stimulates increased testosterone production. (source)
Protocol: Eat 0.8 to 1.0 g of protein per pound of body weight per day. One serving examples: Eggs (3 large eggs), Chicken Breast (3.5 oz), Beef (lean cuts) (3.5 oz), Salmon (3 oz), Pork (lean cuts) (3.5 oz), Tofu (3.5 oz).
Supplement with tongkat ali. Supplementation with tongkat ali increases free testosterone concentrations. (source) Tongkat Ali contains compounds that promote the release of testosterone from its binding hormone, sex hormone-binding globulin, which increases levels of free testosterone in the blood. (source)
Protocol: Supplement with at least 200 mg of Tongkat Ali daily.
Limit sugar intake. Sugar elevates cortisol levels. (source)
Protocol: Monitor and limit excess sugar intake.
Get outside. Time in nature, whether walking or sitting, decreases cortisol levels. (source) The biodiversity of nature and its sounds stimulate the parasympathetic nervous system, decreasing markers of stress, including cortisol. (source)
Protocol: Spend at least 20 minutes outside daily, with the future goal of attaining 3 total hours per week.
Perform breathwork and meditation. Breathwork reduces cortisol. (source) Diaphragmatic breathing activates the parasympathetic nervous system, leading to a decrease in heart rate and blood pressure and resulting in reductions in cortisol. (source)
Protocol: Sit down and calmly focus on your breath while box breathing for up to five minutes.
Supplement with ashwagandha. Supplementation with ashwagandha reduces serum cortisol levels. (source) Ashwagandha modulates the hypothalamus-pituitary-adrenal axis, reducing cortisol concentrations. (source)
Protocol: Supplement with at least 240 mg of ashwagandha daily.
High Free Testosterone/Cortisol Ratio: Anabolic Advantage
A high free testosterone/cortisol ratio is often attributed to physiological factors involving the endocrine system, particularly the adrenal glands and testes, which regulate cortisol and testosterone levels, respectively. Consuming a diet rich in nutrients that support testosterone production, such as zinc and vitamin D, while managing stress levels contributes to a favorable ratio. (source, source, source, source, source)
Potential Performance Impact
- Enhanced recovery and muscle building
- Improved training adaptation
- Positive mood and energy levels
Optimization
Incorporate organic fruit juice. Sugar elevates cortisol levels. Excess sugar is metabolized in subcutaneous fat cells, triggering an inflammatory response and an increase in cortisol. (source)
Protocol: Drink 8 fl oz of organic juice.
