Amazon

I did some pantry shopping on Amazon today, these are only Prime-Eligible products...

Almond Flour
* $7/lb for a 5lb bag of Anthony's Almonds Natural Almond Meal/Flour:
* There was also a "blanched" variety of this, but I don't know what that means & it was a little more expensive.
...well a few minutes later I got notice that this product was no longer available but the blanched was. So I learned that blanched means the almonds are soaked in water & skins removed.  Almond flour is finer while almond meal is coarser & usually has skin.
 *I'm changing my recommendation to the Anthony's Almonds Blanched Almond Flour 5lbs at $7.60/lb (Winco is cheaper and nuts.com is more for the same size.)
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Ghee
* There is a 56oz jar (3.5lbs!) at $0.64/oz ($35.85), Nanak Pure Desi Ghee.  But that seems like a lot.
* Whole30 recommends the Pure Indian Foods brand & that's available as both cultured ($1.64/oz) or not ($1.60/oz).  Don't know what cultured means or what the difference is.
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Canned Salmon
* Wild Planet Sustainably Caught Pink Salmon $0.92/oz (6 cans for $33.19) - the Sockeye is more expensive.
* The Kirkland Signature brand of Sockeye won't show the label so I can't confirm added ingredients, but it's $2.21/oz!
* The winner is Crown Prince Natural Pink Salmon Wild Caught - I can't see the ingredients list either, but it's a 12-pack at $0.46/oz. for $41.34. Here's the description:

• Case of twelve, 7.5-ounce cans with pull-top lids (total of 90 ounces)
• MSC Certified sustainable seafood; gluten free; kosher
• Contains 1.5 grams of omega-3; excellent source of protein; low sodium
• Traditionally packed to include the bones and skin for added calcium
• Sustainably wild caught; product of Canada

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Coconut Butter
* Artisana seems to be the leading brand (and recommended by Whole30.)  The large container is 16 oz at $0.83/oz, the smaller one at 8oz is twice as much at $1.87/oz. They also sell it in 10-packs (small pouches) at $1.33/oz.
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Coconut Milk - Randi already commented in her post & I got the same thing.
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Tahini - $0.72/oz, only one choice
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Sesame Oil - best deal is Kevala 8oz at $1.32/oz, assuming you don't want to buy gallons.
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Cashews - 5lbs raw for $29.45 ($5.89/lb)