CK
CK (creatine kinase) is an enzyme found mainly in the muscles, where it helps supply energy for muscle work.
CK (creatine kinase) is an enzyme found mainly in the skeletal muscles, and in smaller amounts in the heart and brain. It helps supply energy for muscle work. When muscles are worked hard, more CK passes into the blood, so the level often reflects recent physical activity.
Hard or unfamiliar exercise, especially strength training and long runs, can raise CK for several days. Muscle mass, sex, a muscle injury and some medicines such as statins also affect the level.
Foods that help
Enough protein from eggs, fish, poultry and legumes, plenty of water, and fruit, berries and vegetables.
Foods to limit
A lot of alcohol. Several days of rest after very hard training give a more even picture before the test.
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.
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