If you go through more than a tub or two of protein a year, the price you pay is mostly determined by timing. The same Optimum Nutrition Gold Standard 5lb that sells at $89.99 most of the year drops to $54.99 during Amazon Prime Day, $59.99 around iHerb Black Friday, and $64.99 in random one-day Costco Instant Savings windows nobody notices unless they are watching. Our trackers watch. The newsletter is how we tell you when something worth pouncing on lands.
What you will get in every issue
The newsletter has a fixed shape so you can read it in 90 seconds on a Tuesday morning and decide whether anything is worth a click. Every issue contains the same four sections in the same order:
Sample recent issues
To give you a sense of the tone and detail, here are excerpts from a few recent issues. These are placeholder examples that mirror the structure of real send-outs:
Optimum Nutrition Gold Standard hits a 14-month low at $54.99
The flagship 5lb whey blend has slipped to $54.99 at Bodybuilding.com after weeks at $89.99. That puts it at 32.3 g protein per dollar: the highest score we have logged on this SKU since March of last year. Three other retailers still show $79.99+ which is why we trust the BB.com price. The deal has been live 36 hours so far.
New guide: which mass gainer is actually worth $80 a tub?
We finished the long-form mass gainer comparison this week. The short version: Optimum Serious Mass remains the cheapest gram-per-dollar option but loses to Transparent Labs Mass Gainer on ingredient quality. If you are bulking on a budget, the math points one way. If you are bulking with care, the other. Full breakdown plus per-retailer pricing inside.
Heads up: iHerb Brand Week kicks off Sunday
Based on the last four Brand Week cycles, expect 20 to 30 percent off Naked Nutrition, MyProtein, KOS, and Vital Proteins. The Naked Whey 5lb has historically hit $79.99 during these events (it sits at $94.99 right now). We will run a mid-week update on Wednesday if anything drops further than expected.
Analysis: why Quest bar prices are quietly climbing
Quest Nutrition has lifted base pricing across Amazon, Vitacost, and Bodybuilding.com by roughly 7 percent over the last three months. The 12-bar variety pack moved from $26.99 to $28.99 average, which knocks per-bar value from 1.16 g/$ to 1.08 g/$. Bars from Built Bar and Barebells now look better on the same shelf.
Issues run roughly 600 to 900 words. You can read one on a coffee break. We do not pad them, we do not chase open rates with bait subject lines, and we do not chain you to a five-part welcome sequence when you join.
Privacy and how we treat your email
The newsletter list lives on its own infrastructure and never leaves it. Specifically:
- We collect only your email address. No name, no address, no phone, no birthday. The signup form takes one field and that is the only field we store.
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- We never use the list for anything except the newsletter you signed up for. Same content, same cadence, no surprise launches into adjacent topics.
- One click to unsubscribe. Every issue has a working unsubscribe link in the footer and the standalone page at /unsubscribe/ works in a single step. We do not require you to log in or "give us a reason."
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For the full account of how ProteinPrice collects and protects user data, see our privacy policy. The short version: minimal collection, no resale, full GDPR and CCPA rights honored.
What this newsletter is not
Just as important as the four things you will get, here is what the newsletter will never become:
- Not a sponsored advertorial. Brands do not pay for newsletter placement. The "top 3 deals" come from the Value Score formula, not from whichever retailer is paying the highest commission. If Costco (no affiliate) has the best deal, Costco gets the slot.
- Not a daily blast. One email per week is the cadence. We will not send four messages on Black Friday. We will not run a "12 Days of Protein" promotional sequence in December.
- Not a coupon catalog. We do not push promo codes that boost commissions but do not actually improve the per-gram math. Codes that move the price meaningfully get featured. Codes that look impressive on paper but only beat the base price by a dollar get ignored.
- Not a nutrition coaching service. The newsletter does not include personalized macro plans, training programmes, or supplement protocols. We are a price comparison engine. Macro advice belongs with a registered dietitian.
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If you would rather stay anonymous, the same content is available without a signup at /deals/ (live deal feed), /sales/ (upcoming sale events), and /blog/ (full long-form archive). The newsletter is a convenience wrapper around all three, delivered to your inbox so you do not need to remember to check.