Blogs
Intermittent fasting and testosterone levels
Intermittent fasting's effect on testosterone depends significantly on your starting metabolic profile. In lean, physically active men, research consistently shows fasting can reduce testosterone levels. In overweight or obese men, the opposite often occurs, with...
Low testosterone and cancer recovery, key points
Low testosterone is common among male cancer survivors, particularly those treated with chemotherapy, radiation, or hormone-suppressing therapies. Recovery timelines vary significantly based on age, treatment type, and duration, with research showing roughly 71.5% of...
Do testosterone boosters work, real evidence
Most over-the-counter testosterone boosters lack strong clinical evidence supporting their effectiveness. A comprehensive evaluation of 50 popular testosterone booster supplements found only 24.8% contained ingredients with data demonstrating they actually increase...
Chemicals that lower testosterone, everyday toxins
Several common chemicals classified as endocrine disruptors, including BPA, phthalates, parabens, and certain pesticides, have been linked in research to lower testosterone levels. These compounds are found throughout everyday items like plastic containers, personal...
At home thyroid tests, accuracy and when to use
At-home thyroid tests, when purchased from reputable, CLIA-certified providers and used correctly, are generally accurate for screening purposes, particularly for TSH levels. However, they're best used as a convenient first step rather than a replacement for...
Vitamin D and testosterone, evidence overview
Vitamin D and testosterone are associated in observational research, with men who have higher vitamin D levels often showing somewhat higher testosterone. However, the evidence for vitamin D supplementation actually raising testosterone levels remains inconsistent...