Trixie, I started on this but one of cats interrupted & so I will start again!
First of all, I take a daily Ensure Max Protein which is 650 mg of calcium. Also daily I usually take a glass of Minute Maid orange juice which is 350 per cup. I drink milk which is 300 mg per cup &/or Almond milk w. which is about 350 per cup. Also kefir - am looking at the label of my blueberry kefir now & it's 390 per cup.

Per day, I almost always have a glass of orange juice in the am, not a cup, & a glass of milk of some kind around noon. So with the Ensure...... there it's pretty easy I haven't gptten into sardines yet but I do like canned salmon with bones as a salad topping or in as sandwich. Re the milk, I will fairly frequently have more than one glass per day, be it regular milk or almond milk

Two of my "go to" sources for calcium are Fairlife fat-free ultra-filtered lactose-free milk and GreatValue (Walmart) Almondmilk; I'm a fan of the chocolate.