This mod adds 42 new alchemy ingredients into Oblivion, some of which may not be as easy to find as others.
Another addition is the Spelled Coffer in The Main Ingredient in the IC Market District. The Spelled Coffer allows you to take certain items and break them down into alchemical ingredients.

Found in leveled ingredient and vendor lists:
Banana
Bear Fang(also found on Bears)
Bear Meat(also found on Bears)
Blue Cheese
Cheddar Cheese
Clam Meat(also found on Clams)
Cucumber
Dog Meat(also found on Dogs)
Goblin Flesh(also found on Goblins)
Goblin Heart(also found on Goblins)
Imp Flesh(also found on Imps)
Lard
Lion Meat(also found on Lions)
Marble Cheese
Peanut
Pitcher Plant Seeds(also found by harvesting Pitcher Plants)
Raspberry
Seaweed
Sugar
Wolf Meat(also found on Wolves)

Found in loot lists only:
Contaminated Potion
Damaged Soul Gem
Spoiled Agility Potion
Spoiled Endurance Potion
Spoiled Fatigue Potion
Spoiled Health Potion
Spoiled Intelligence Potion
Spoiled Luck Potion
Spoiled Magicka Potion
Spoiled Personality Potion
Spoiled Speed Potion
Spoiled Strength Potion
Spoiled Willpower Potion

Found in vendor lists only:
Hunter's Pie
Mystery Meat(Sold exclusively by Claudette Perrick)
Mystery Nectar(Sold exclusively by Ogier Georick)
Rose Seeds(Sold exclusively by Falanu Hlaalu)
Sea Salt(Sold exclusively by Ungarion)

Created by using the Spelled Coffer:
Bone Dust
Pile of Ashes
Welkynd Powder

Found only on dead creatures:
Horse Meat
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The files for the ingredient Banana came from Hebinisiki's Banana Resouce ( http://oblivion.nexusmods.com/mods/41943 )
The files for the ingredient Cucumber came from Aegishjalmurs Food Resource - Cucumber ( http://oblivion.nexusmods.com/mods/31791 )
The files for the ingredient Peanut came from morerunes' Ingredient Database ( http://planetelderscrolls.gamespy.com/View.php?view=OblivionMods.Detail&id=4810 )
The files for the ingredient Raspberry came from Lunas Red Raspberry Resource ( http://oblivion.nexusmods.com/mods/42701 )