The ultimate concentrated source of energy for all (or nearly all) the things we do is the sun.

These bodies form concentrated sources for many metals and other useful elements.

It is still possible to eat enough calories on this diet to gain weight, since fat is a concentrated source of energy.

Both are important and concentrated sources of energy but some unsaturated fats are needed for good health.

Wheatgrass is primarily used as a concentrated source of nutrients.

The most concentrated dietary sources of iron are red meat and offal such as liver.

The manufacturer's warning says you should not use this supplement in conjunction with any other concentrated source of iodine.

On the one hand, they are a concentrated source of energy.

To test out the idea, I knew that we'd need a concentrated source of hi-particles.

The most concentrated source of yellow energy, the yellow element, was hidden by the Guardians to prevent others from using it against them.