Should You Fast Before a Cholesterol Test?

Nelson Vergel

Founder, ExcelMale.com
Among the studies that found that fasting may have little impact on cholesterol blood test results was a large 2012 Canadian study of more than 200,000 people that found average levels for HDL and total cholesterol varied less than 2 percent, regardless of whether people had eaten an hour earlier or fasted for 16 hours. LDL cholesterol levels varied by less than 10 percent whether patients had fasted or not, and triglyceride levels varied by less than 20 percent, that study found.

Many European countries no longer recommend that patients fast before a cholesterol test. Nonfasting lipid testing has been standard in Denmark since 2009, and the National Institute for Health and Care Excellence, which develops guidelines in Britain, has endorsed nonfasting lipid testing for the primary prevention of heart disease since 2014. More recently, a joint consensus statement by the European Atherosclerosis Society and European Federation of Clinical Chemistry and Laboratory Medicine reviewed the evidence and agreed that fasting is not routinely required for a lipid profile.

http://mobile.nytimes.com/blogs/wel...-you-fast-before-a-cholesterol-test/?referer=
 

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Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

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Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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