My answer is in line with that of Dee. There are so many medical benefits of turmeric that religious importance is added to it to make it a daily part of life. Sri Sri Ravi Shankar narrates relevant incidents:
I want to share with you one incident that happened in 1980. I had
organized a meeting of Ayurvedic doctors and doctors of modern
medicine in New Delhi. It was in Vasant Vihar and there were about 50
to 60 doctors on each side. As the conference was going on, the
discussion of turmeric came up, and I vividly remember this discussion
of turmeric. All the allopathic doctors said that turmeric has no
value, it is just a pigment. They dismissed the Ayurvedic doctors who
said that turmeric is a vayosthapan, which means it arrests ageing,
and it creates the more ojus (vitality) in your system. This is what
the Ayurvedic doctors kept saying but the allopathic doctors said that
it is all total nonsense.
Today allopathy has recognized that the turmeric does the job of 19
life saving drugs including cancer. Turmeric is an anti-viral agent if
you have viral fever. Usually allopathic doctors say that there is no
medicine for viral fever, just take some fresh turmeric with fresh
lime, and that will do.
In India, we make pickles of turmeric, ginger and lemon, and this is
the best. Turmeric is anti-viral, anti-bacterial, and an antioxidant.
It does the work of aspirin, it is blood thinner, and it stops blood
coagulation. It does the work of 19 important life saving drugs.
In our tradition, on any auspicious event, the first thing what we buy
is turmeric and then we buy clothes and other things. I remember when
we got new clothes my grandmother used to put a little turmeric at the
corner of the cloth. If it is a new cloth put some turmeric at the
corner. Turmeric is given so much importance in our country and today.
Ayurveda is the medicine of the 21st century. Of course not all
Ayurvedic preparations which people do are hygienic or scientific in
nature. We must not ignore science, but along with science we must