Is it true that decreasing LDL cholesterol and increasing HDL cholesterol removed plaque from arteries?

Yes. Reducing LDL and increasing HDL can reduce plaque in arteries. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex.