Jelly in Bones, Nutrient Source for Ancient People

This page is the CodyCross answer for the clue below from Health and Fitness, Group 2121, Puzzle 5 (Fitness Tracker).

Question is: Jelly in Bones, Nutrient Source for Ancient People

and the answer is: MARROW

Word Meaning:

MARROW — (uncountable) The substance inside bones which produces blood cells.

Definitions from Wiktionary.

Jelly In Bones, Nutrient Source For Ancient People - Health and Fitness CodyCross Answers | CodyCross Solutions