Just to be clear:
Our business does not rely solely on Instagram.
We have a website with over 5MM visits/year, a YouTube channel with over 30k followers and few millions visualizations.
However Instagram (and FB) are HUGE in the fitness and nutrition world.
We had post with several thousand likes and comments that we used as ads to drive traffic to our Free products.
We have spent more than 100,000$ in ads over the years.
So our Instagram account was like a big premium billboard.
All gone.