Doctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Estrone (E1)
Estrone (E1) is a weaker estrogen that may influence body composition and recovery in athletes. As it is primarily produced in fat tissue, levels could reflect energy balance and training status. Your healthcare provider can help contextualise your results.
Reference Ranges
Low
37
Normal
230
High
Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.
What It Measures
This test measures the level of estrone (E1) in your blood. Estrone is produced by fat tissue, the adrenal glands, and the ovaries. After menopause it becomes the primary circulating estrogen. Your healthcare provider may use this result to assess your overall hormonal status.
Why It Matters
For athletes, estrone levels may reflect body fat percentage and energy availability. Low levels could suggest relative energy deficiency, while elevated levels might indicate excess adipose tissue. Discuss your results with a healthcare provider to optimise your training approach.
When to Test
Your healthcare provider may recommend estrone testing during menopause evaluation, when investigating unexplained weight changes, or as part of a comprehensive hormone panel. Testing could also be suggested for monitoring hormone replacement therapy effectiveness. Consult your provider for personalised guidance.
Symptoms
Low Levels
Some people may experience accelerated bone loss, increased fatigue, or changes in body composition when estrone levels are low. Joint discomfort and skin changes could also suggest reduced estrogen activity. A healthcare provider can help evaluate whether your levels require attention.
High Levels
Elevated estrone levels may be associated with weight gain, bloating, breast tenderness, or irregular bleeding. High levels could suggest increased conversion from fat tissue or other hormonal imbalances. Your healthcare provider can help determine whether further investigation is appropriate.
Lifestyle Tips
Maintaining a healthy body weight may help regulate estrone levels, as fat tissue is a primary production site. Regular exercise, a balanced diet, and limiting alcohol consumption could support healthy estrogen balance. Always consult your healthcare provider before making significant changes.
Frequently Asked Questions
What is estrone?
Estrone is a weaker estrogen that becomes dominant after menopause, mainly produced in fat tissue.
Why test estrone specifically?
Estrone testing may help evaluate postmenopausal hormonal status and overall estrogen activity.
Does body weight affect estrone?
Yes, fat tissue produces estrone, so body composition may influence your levels significantly.