Banana

Bananas were a fruit beloved by the Doctor (DW: The Doctor Dances, The Girl in the Fireplace) and also a good source of potassium. (DW: The Doctor Dances) He also liked banana milkshakes. (DW: Smith and Jones)

The Tenth Doctor claimed that while partying with Madame de Pompadour in 18th century France, he might have invented the banana daiquiri several centuries early. He also gave Rose the advice, "always bring a banana to a party". (DW: The Girl in the Fireplace) Bananas were commonly associated with monkeys. (DW: Ghost Light)

According to the Ninth Doctor, a banana grove grew in Villengard at the former site of the weapons factories. (DW: The Doctor Dances)

On Space Station Chimera, the Sixth Doctor found a banana whist searching his pockets for piece of wire. He gave the banana to Peri who later started to eat it (but gave up when the sight of a dead Androgum made her feel sick). (DW: The Two Doctors)

Jo Grant brought a captive Ogron a banana. He did not comprehend her instructions to peel it. (DW: Frontier in Space)

Reverend Ernest Matthews was given a banana by Josiah Samuel Smith just before Josiah turned him into a monkey. (DW: Ghost Light)

During a visit to Blackwood Falls, the Tenth Doctor ate two banana splits in quick succession. (NSA: Forever Autumn)

Duncan Goode told Martha, "...don't judge a banana by its skin". (NSA: Wishing Well)

The Tenth Doctor described a "Banana Surprise". (NSA: Martha in the Mirror)

Expecting to land on a sunny beach, the Tenth Doctor emerged from the TARDIS with an inflatable banana. (NSA: Snowglobe 7)

Eugene Jones favoured banana milkshakes. (TW: Random Shoes)

After being defeated by the Tenth Doctor, Bob Kreesus slipped on a banana skin and fell over a cliff edge. (DWAM: Triskaidekaphobia)

When the Tenth Doctor tried to stop Sky Silvestry from copying him, one of the things he mentioned was banana. (DW: Midnight)

When Ianto Jones was explaining automatic doors to Diane Holmes, John Ellis and Emma-Louise Cowell, the women spotted bananas inside the supermarket, something they were more interested in. (TW: Out of Time)

Bananas were mentioned by the Eleventh Doctor in the Comic Relief episode, "Space", broadcast on 18th March 2011.