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.
Note, that agar-agar can cause an allergic reaction in some people independently of shellfish allergy. The problem is that agar-agar comes as a specific commercial product, which may (or may not) include ingredients from fish or shellfish. This may be a reason why some websites recommend avoiding agar to those with shellfish allergies.