Another study found that niacin makes blood less thick in a variety of ways, which improves blood flow and how well blood reaches narrowed parts of the blood vessel system. These numbers prove how important vitamin B3 is for anyone who wants to age healthily and keep their circulation in good shape.
How to Get Enough Niacin
Vitamin B3 is found in a lot of different foods, from lean meats like chicken and turkey to fish like tuna and salmon. You can also find it in plant-based foods like sunflower seeds, peanuts, and avocados. Whole grains and fortified foods are also great sources.
Additionally, your body can make some of this vitamin from tryptophan, which is found in protein-rich foods like eggs and dairy, as long as you have vitamins B2 and B6.