What you do is what i used to do.
For 2 weeks absolutely eat the SAME protein source for EVERY single meal.
Then your able to buy in bulk and save money.
Egg week was particulary inexpensive so i got to save for protein powder.
For fats buy tescos BOTTLES of olive oil and drink like a fish.
Walmart chunk light tuna $0.90/can 27g/can
Eggs $0.00(I’ve got chickens) don’t know I just eat a lot of 'em
BodyFortress Whey Protien $12.00/2.5lb tub 26g/scoop
These are my favs… we also have a local grocer that does bulk chicken breasts cheap in big bags… love that.
Why not just eat normal food? Chicken breasts, eggs, and tune are probably grams/$ cheaper than any whey/casein protein with a better and more complete nutritional profile. I would rather eat some beef/chicken than some heavily processed artificially sweetened “supper whey ultra concentrate casein blend.”
This for protein supplement: Reflex
Or when very poor its plain old whey concentrate from bulkpowders.co.uk.
Tesco value eggs: 15 for £1.50
Tesco diced turkey thigh: 500g for £2
Also picked up 2lb of steak today for about 4 quid by hovering around the reduced section - straight into freezer!