DNA tests can obviously be of a sensitive nature and we are more than aware of this. All our DNA sampling kits are sent out in the post in plain envelopes marked Private & Confidential and with no branding on them, so it will look like a normal letter.
Shellfish Allergy Triggers. Within the shellfish family, it is the crustacean group (shrimp, lobster and crab) that causes the greatest number of allergic reactions. Many shellfish-allergic people can tolerate mollusks (scallops, oysters, clams and mussels). Avoid foods that trigger symptoms.
Typically, individuals allergic to 1 type of shellfish have a very high chance (75%) of becoming allergic to other shellfish. It is thus very important to avoid all shellfish types, not just the one or two that you might initially have had a problem with. There is little, if any, cross-reactivity between fish and shellfish.