When I'm practising the full primary nearly every day, I can really feel the difference that my diet makes in my practice. This morning, my joints felt numb and gummy. I couldn't bind in Supta Kurmasana and Supta Konasana felt uncomfortable. Last night's supper was pizza and I have a feeling that the dairy in the cheese (I rarely eat dairy) affected my body in a negative way.
I also felt exhausted. I'm going to take a break from Astanga tomorrow and practice Hatha. This works well for me, as it's my busiest teaching day.