LH
Luteinising hormone (LH) is a hormone from the pituitary gland that steers the ovaries and testes.
Luteinising hormone (LH) is a hormone from the pituitary gland that steers the ovaries and testes. In women, a surge of LH triggers ovulation in the middle of the menstrual cycle. In men, LH prompts the testes to make testosterone. Its level is read together with FSH and the sex hormones.
In women, LH varies a lot across the menstrual cycle and rises naturally around menopause, so the day of the cycle matters. Hormonal contraception lowers it. Hard training, low energy intake, large weight loss and long periods of stress can lower it, and age plays a part in both sexes.
Foods that help
Regular meals with enough energy, protein, healthy fats from fish, nuts and seeds, and plenty of vegetables and whole grains. Good sleep and recovery between hard training sessions also matter.
Foods to limit
Very low-calorie dieting over long periods, large amounts of alcohol and a diet built on ultra-processed food and sugar can disturb the hormone balance that LH is part of.
Track it through the year
One value is a snapshot. Following it up shows whether what you changed is working.
Related markers
Educational information only — not a diagnosis. Every result is checked against safe limits, and anything critical is escalated for follow-up.
See all 84 markers →