The base game of Stone Age includes nine 10-value food tokens and twenty (?) 5-value food tokens. Players start the game with 12 food, and will typically use 5 food after the first turn.
I normally play with 3 players, and deal out one 5-value, two 2-value, and three 1-value food tokens to each player at the start (with the 5-value being taken to feed at the end of the first turn). Never have I used a single 10-value food token, let alone almost ten of them. I don't think I have seen a player go hunting and get more than ten food in a single turn (or maybe only a couple of times). I rarely see players get more than five food in a single turn, for that matter - meaning the 5- and 10-value tokens are never used. When setting up the game, all of the 10-value tokens go back into the box, along with all but five of the 5-value tokens (three of which are given to the players when setting up).
Given how rarely these 10-value tokens are used (and the 5-value tokens, too), why does the game include so many of them? Gameplay with 4 players will surely be different than with 3, of course, but I can't see how that extra player would require using the 10-value tokens (let alone so many of them)!