"He has lost five kilograms in the past seven days. His weight has come down to 67 from 72 kg. His blood pressure is 130/80 and pulse rate 90," close associate Manish Sisodia told reporters here.
"Doctors say his health is okay but we are worried," he said.
Another associate Arvind Kejriwal said the ketone level in Hazare`s blood and urine has risen slightly.
Activist Kiran Bedi said Anna has not eaten for seven days but no one in government seems concerned.