RF
RF is an antibody that the immune system can make against the body’s own antibodies.
RF is an antibody that the immune system can make against the body’s own antibodies. The test measures how much of it is in the blood. Retesting shows how it changes over time.
RF can rise for a while after an infection and becomes more common with age. Smoking is linked to higher levels. Ongoing inflammation in the body can also raise it.
Foods that help
Fatty fish, vegetables, fruit, berries, legumes, whole grains and olive oil as part of a varied diet.
Foods to limit
Smoking, processed meat, and large amounts of sugar and highly processed food.
Track it through the year
One value is a snapshot. Following it up shows whether what you changed is working.
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 →