You could be tested for allergy or intolerance  to 46 most common food preservatives, colourings, thickeners and stabilizers.

• E100 Curcumin
• E102 Tartrazine / FD & C Yellow No 5 / Food Yellow 4
• E104 Quinoline Yellow/ Food Yellow 13
• E110 Sunset Yellow / Orange Yellow 5 / FD & C Yellow No. 6 / Food Yellow 3
• E123 Amaranth / FD & C Red 2 / Food Red 9
• E124 Ponceau 4R / Cochineal Red / Food Red 7
• E128 Red 2G
• E131 Patent Blue V / Food Blue 5
• E132 Indigo Carmine / Indigotine / FD&C Blue No 2 / Food Blue 1
• E133 Brilliant Blue FCF / FD & C Blue No 1
• E142 Green S / Acid Brilliant Green BS / Lissamine Green / Food Green 4
• E151 Black PN / Brilliant Black BN / Food Black 1 / CI 28440
• E154 Brown fk
• E155 Brown HT
• E202 Potassium Sorbate
• E210 Benzoic Acid
• E211 Sodium Benzoate
• E222 Sodium Hydrogen Sulphite / Sodium Hydrogen Sulfite
• E260 Acetic Acid
• E270 Lactic Acid
• E296 Malic Acid
• E300 Ascorbic Acid/ Vitamin C
• E320 Butylated Hydroxyanisole/ Is BHA safe? Yes, the safety has been approved by the authorized parties, e.g. FDA, EFSA and JECFA. However, compared with BHT and TBHQ, BHA is controversial for its possible side effects, as it is classified in “Group 2B” which means “possibly carcinogenic to humans” by the International Agency for Research on Cancer (IARC). (¹) ref1
• E321 Butylated Hydroxytoluene/ BHTEFSA concluded that BHT was not genotoxicity but cancer may be caused at high dosage in some animals. An ADI of 0.25 mg/kg bw/day was established in 2012. ref 1
• E330 Citric Acid
• E331 Sodium Citrate
• E322 Lecithin
• E334 Tartaric Acid
• E401 Sodium Alginate
• E407 Carrageenan
• E410 Locust Bean Gum/ Carob Gum
• E414 Gum Acacia
• E415 Xanthan Gum420(i) Sorbitol
• E440(a)/ Pectin
• E491 Sorbitan Monostearate
• E500 Sodium Bicarbonate
• E621 Monosodium Glutamate
• E903 Carnauba Wax
• Saccharin
• Caffeine
• Dimethyl Bicarbonates
• Lactose
• Vanillin
• Wood Distillate
• Food additives E 102,E104, E 110, E 123, E 124, E 128, E 132,E 133,E 142, E 151, E 154, E 155 prohibited in many countries – Canada, USA, Finland, Sweden, Austria, Norway Japan, Portugal, France Australia, Germany, Spain, Belgium, Holland, Switzerland Greece, Italy, Denmark. Different E numbers prohibited in different above countries ref 2
• REFERENCES
• 1. What is Butylated Hydroxyanisole (BHA) (E320) in food: Uses, Safety, Side effects (foodadditives.net)
• 2. Test kit for energy work distributed by life work potential