Guidelines for research ethics, nor does it have any authority to impose sanctions. Research ethics As a concept, âresearch ethicsâ refers to a complex set of values, standards and institutional schemes that help constitute and regulate scientiï¬ c activity. Ultimately, research ethics is a codiï¬ cation of ethics of science in practice.
Niacin and cholesterol are closely linked, and niacin (vitamin B3) is recommended by some experts to help lower LDL (bad) cholesterol levels within your body. Some cardiologists prescribe 3,000 milligrams (3 grams) of niacin per day or even higher amounts for people with very high cholesterol levels.
In terms of meeting basic nutritional needs, taking a multivitamin that includes niacin, or vitamin B-3, is safe in combination with other nutrients. However, if you take niacin supplements to help control your cholesterol, certain combinations should be avoided. Vitamin A as beta-carotene, and vitamins C and E may reduce niacin's ability to improve good cholesterol levels, according to MedlinePlus.