Why is my hunger decreaser script not working right?

I am trying to make a hunger decreaser script, but its taking too much hunger away when I eat, this only occurs when I eat. I think it may have something to do with resetting.

Hunger Decreaser Script:

hunger = "Hunger"
while true do
	wait(20)
	for i,v in pairs(game.Players:GetPlayers())do
		if v:FindFirstChild("leaderstats") then
			v.leaderstats[hunger].Value = v.leaderstats[hunger].Value - 1
		end
	end
end

Eating script:

food = "Food"
hunger = "Hunger"
script.Parent.MouseButton1Click:Connect(function()
    for i, v in pairs(game.Players:GetPlayers())do
        if v:FindFirstChild("leaderstats")then
            if v.leaderstats[food].Value == 0 then print("error") else
            if v.leaderstats[hunger].Value == 20 then print("error")
        else if v.leaderstats[hunger].Value + 5 > 20 then v.leaderstats[hunger].Value = 20 
            v.leaderstats[food].Value = v.leaderstats[food].Value - 1 else
                v.leaderstats[hunger].Value = v.leaderstats[hunger].Value + 5
                v.leaderstats[food].Value = v.leaderstats[food].Value - 1
                    end
                end
            end
        end
    end
end)

There's a solution: YOU NEED TO USE GUI'S. 2 frames, 1 text label but not box under the frames. Red frame is "HungerBacking" and Green frame is "HungerBar". Green is the top-priority bar.

There is the code for the "Hunger" bar in your screen;

while true do
	script.Parent.HungerBar.Size = UDim2.new(script.Parent.HungerBar.Size.X, script.Parent.HungerBar.Size.Y - 5)
	wait(1)
end

PLEASE note that the size of the bar should be {0,10},{0, 100} for it to properly work.

Now to the textlabels.

1. Turn on TextScaled
2. Change the size to {0, 55},{0, 25}
3. Set BackgroundTransparency to 1 (Turns off the boring black border)
4. Make the TextLabel say "Hunger"
5. For the position, set position to {0.015, 0},{0.187, 0}

Now we need a tool that upscores your Hunger. We'll call it "Fruit"

1. Make a part called "Handle". Shortcut to rename: Press F2 during the instance focused (clicked).
2. Add a script called "HungerAction".
3. In the script, delete the default script and paste the following:

local Tool = script.Parent;

enabled = true




function onActivated()
	if not enabled  then
		return
	end

	enabled = false


	local hb = game.Players.LocalPlayer.PlayerGui.ScreenGui.HungerBarr.HungerBar
	Tool.Handle.DrinkSound:Play() --make it sound like drink

	wait(3)
	
	local h = Tool.Parent:FindFirstChild("Humanoid")
	if (h ~= nil) then
		if (h.MaxHealth > h.Health + 5) then
			hb.Size.Y = hb.Size + 5
			h.Health = h.Health + 5
		else	
			h.Health = h.MaxHealth
		end
	end

	Tool.GripForward = Vector3.new(-.976,0,-0.217)
	Tool.GripPos = Vector3.new(0.03,0,0)
	Tool.GripRight = Vector3.new(.217,0,-.976)
	Tool.GripUp = Vector3.new(0,1,0)

	enabled = true

end

function onEquipped()
	Tool.Handle.OpenSound:play()
end

script.Parent.Activated:connect(onActivated)
script.Parent.Equipped:connect(onEquipped)

1. This will hold up our hunger thing. Now to the next thing that edits the mouse cursor;

local MOUSE_ICON = 'rbxgameasset://Images/Large Cursor Click'
local RELOADING_ICON = 'rbxgameasset://Images/Large Cursor (1)'

local Tool = script.Parent

local Mouse = nil

local function UpdateIcon()
	if Mouse then
		Mouse.Icon = Tool.Enabled and MOUSE_ICON or RELOADING_ICON
	end
end

local function OnEquipped(mouse)
	Mouse = mouse
	UpdateIcon()
end

local function OnChanged(property)
	if property == 'Enabled' then
		UpdateIcon()
	end
end

Tool.Equipped:connect(OnEquipped)
Tool.Changed:connect(OnChanged)

This is gonna take up the icon. Have fun using the Hunger GUI!