Fungi are microscopic plant organisms that consist of cells, such as mould, mildews and yeast. They cannot produce their own food; thus they behave as either parasites or saprophytes, absorbing nutrients from organic matter, such as humans and animals. Fungal infections include: Athlete's foot (Tinea pedis) Jock itch (Tinea cruris) Ringworm (Tinea corporis) Face fungus (Tinea faciei) Tinea Versicolor Fungal Nail Infections Fungal Hair Infections