Not too much
Consume in moderate amounts.
Basil
Excessive quantities can cause a build up of toxic oils. In food is fine, but should not be consumed in concentrated or medicinal forms.
Bay Leaf
Reportedly aids flow of breast milk but historically used as an abortifacient (substance to induce abortions) in large quantities.
Black Mustard
The seeds are often used in dishes as a spice.
Black Tea
Black tea types include Earl Grey, English Breakfast, Lapsang Souchong, Assam, Ceylon, Darjeeling, and many more.
Caraway
In large quantities it can cause uterine contractions.
Carp
Coca-Cola
Be careful with all varieties, including diet versions.
Coffee
Do not have more than 200mg of caffeine a day.
Daikon Radish
Fenugreek
Has been used to induce labour and is considered to be an emmenagogue.
Gingko Biloba
Green Tea
Green tea can contain as much caffeine as regular black tea.
Herbal Tea
There's little information on the safety of herbal and green teas in pregnancy, so it's best to drink them in moderation.
Green tea contains caffeine.
Jellied Eels
Jellied eels are cooked during the preparation process, but do contain high quantities of vitamin A so don't eat too many.
Kola Nut
Kola nuts contain caffeine.
Lemongrass
Safe in food, unsafe in medicinal or concentrated forms.
Mastic
Matcha
Matcha is finely ground tea leaves, and contains caffeine. It can be added to many dishes for flavouring or colouring.
Moonfish (Opah, Cusk)
Pepsi
Be careful with all varieties, including diet versions.
Pilchard
Potato
Salmon
Sanddab
Sardine
Sea Bass
Snapper
Sorrel
Contains oxalic acid, which is harmful in large quantities.