4. Calcium
Sardines are very high in calcium. The members of the population who are lactose intolerant aren’t able to get calcium through milk or other dairy products and thus often rely on healthy foods like sardines to get their daily dose. It’s worth noting that all humans were lactose intolerant in the past and eventually developed the ability to digest dairy overtime.
Before that happened, most of the calcium that humans got was through fish species such as sardines. 99% of all the calcium in each human body can be found in the teeth and bones. That just goes to show how important it is for their development as well as in keeping them strong as you age. Getting enough calcium throughout your life can protect you from osteoporosis and other bone diseases. It also boosts cardiovascular health by helping your heart operate efficiently and pump out enough blood.