It applies to anytime IMO. Just make 1 shake and drink when convenient.
For me, I prefer to drink 1/3 right before working out and then finish the other 2/3 during my workout. Some prefer to consume all of afterward.
James 1:16-17 ESV
Do not be deceived, my beloved brothers. Every good gift and every perfect gift is from above, coming down from the Father of lights
With God's help...Mens sana in corpore sano