Determine Whether You’re Lactose Intolerant

Lactose intolerance is closely linked to mutations in the genes required by your body to produce the lactase enzyme. As a result, at-home DNA tests can reveal whether you are partially or completely lactose intolerant.

That knowledge can be extremely beneficial in determining your ideal diet. If you're partially lactose intolerant, for example, you should switch to lactose-free milk and avoid foods like butter and cheese.

Lactose intolerance, like gluten intolerance, can be difficult to detect. A DNA test can tell you whether your body would benefit from avoiding lactose. However, you still need to visit the doctor or hospital to have an exact result related to your health problem.