Review · Diets & Weight Loss

The Smoothie Diet

A low-cost, ready-to-follow 21-day smoothie plan for a short-term reset. You get daily recipes, shopping lists, and a meal schedule built around common grocery-store ingredients — no exotic superfoods or guesswork.

Verdict Recommend 7.3/10
The Smoothie Diet review evidence and wellness context
Reviewed evidence Claims, dose transparency, refund path, and ingredient plausibility checked.

Skeptic read

Recommend7.3/10

A low-cost, ready-to-follow 21-day smoothie plan for a short-term reset. You get daily recipes, shopping lists, and a meal schedule built around common grocery-store ingredients — no exotic superfoods or guesswork.

Price checked
$21
Dose visibility
Better than average: key doses are disclosed enough to compare
Main risk
Optional add-ons and a recurring membership are offered at checkout; the upfront price is $21 only if you decline them
Better use case
Someone who wants a simple, ready-to-follow meal plan for a short-term reset before a vacation or event
Skip if
You have a history of yo-yo dieting or disordered eating, where a rapid-loss plan may not be appropriate
Evidence file
1 source attached

What The Smoothie Diet is, in one sentence.

The Smoothie Diet is a 21-day digital meal plan built around smoothie recipes, sold at $21 through ClickBank. Refund: 60 days, ClickBank-honored on the core product.

The marketing calls it a “rapid weight loss program” and aims it at the health-and-wellness market. What you download is a PDF: smoothie recipes, a shopping list, and a daily schedule. Used as a short-term structure, that’s a reasonable thing to buy for $21.

How it works (plain)

The plan replaces two meals a day with a specific smoothie and keeps one solid meal (lean protein and vegetables), with limited snacks. You follow a daily schedule and a shopping list — no calorie counting, no macro tracking. The mechanism is simple: swapping two regular meals for lower-calorie smoothies creates a calorie deficit for 21 days, and a calorie deficit is what supports weight loss.

That’s also the honest limit. The early drop on the scale is mostly water and glycogen, not fat, because cutting carbohydrates releases the water bound to them (NIH). Real fat loss follows more slowly. The plan promotes a fast start and a structured reset — not a permanent change.

What’s in the smoothies — ingredients and what they’re for

These are foods, not dosed actives, but the recurring ingredients are worth knowing:

  • Leafy greens (spinach, kale), about 1–2 cups per smoothie. Low-calorie volume plus fiber; supports fullness and adds vitamins A, C, and K (Mayo Clinic).
  • Banana or berries, roughly ½–1 cup. Natural sweetness and carbohydrate for energy; berries add fiber and antioxidants.
  • Protein powder, about 1 scoop (~20–25 g protein). Helps you feel full and supports maintaining lean muscle while in a calorie deficit (NIH).
  • Unsweetened almond milk or water, ~1 cup. A low-calorie liquid base versus juice or whole milk.
  • Healthy fats (nut butter, chia, flax), ~1 tablespoon. Adds satiety and omega-3 fats; chia and flax contribute fiber.

Nothing here is exotic, and that’s a point in the plan’s favor: you can buy all of it at a normal grocery store.

Does The Smoothie Diet really work?

For short-term weight loss, yes — but not because smoothies are special. Replacing meals with lower-calorie smoothies creates a calorie deficit, and any calorie deficit supports weight loss; the protein and fiber simply help you stick with it by keeping you fuller (Mayo Clinic). Meal-replacement approaches do produce real short-term results in the research literature (PubMed).

Where I’d set expectations: the sales page leans on dramatic before-and-after framing, and a fast 21-day result is largely water weight up front with fat loss building more gradually. The plan has no maintenance phase, so keeping weight off after day 21 is on you. Treat it as a structured reset, not a cure for anything — no meal plan or supplement can claim to treat or reverse a disease, and this one shouldn’t either.

Side effects and who should be cautious

There’s no drug here, so there’s nothing to interact with the way a pill would. The honest, commonly reported issues are practical: hunger, low energy, or lightheadedness in the first few days as your body adjusts, and the risk that a liquid-heavy, lower-calorie plan won’t cover every nutrient if stretched well past 21 days.

Be cautious if you have a history of disordered eating or yo-yo dieting, a medical condition that needs steady nutrition, or you take medication tied to consistent food intake. Check with a clinician first. This is general information, not medical advice.

Is The Smoothie Diet a scam or legit?

Legit, with one caveat to manage. It’s a real product from a company that has sold it for years, processed through ClickBank, and you get exactly what’s described: a PDF plan with recipes and shopping lists. The claims are realistic once you strip the hype — a calorie-deficit meal plan that works for a short reset. The refund is real: 60 days, ClickBank-honored on the core purchase.

The one thing to watch is the checkout. You’ll be offered optional add-on guides and, after purchase, an optional recurring membership billed separately by the vendor. None of that is hidden if you read the screens — decline what you don’t want, and your cost stays at $21. If you ever want the membership gone, cancel it directly with the vendor, since ClickBank’s refund covers the core product, not that subscription.

How much it costs

$21 one-time for the core plan. Optional add-ons at checkout and an optional recurring membership (commonly around $19–$29/month, sometimes after a short trial) can raise the total past $100 if you accept them. You can decline all of them and keep it at $21.

Is The Smoothie Diet worth it?

Recommend: The Smoothie Diet is worth it for a simple short-term reset at $21. Refund: 60 days, ClickBank-honored.

For the price of a couple of smoothies bought out, you get a fully structured three-week schedule with recipes and shopping lists done for you. If you want a no-fuss jumpstart and you understand it’s a short-term reset rather than a long-term program, it’s a defensible buy — decline the optional add-ons and follow the plan. If you want sustainable, coached weight management with a maintenance phase, look for a program built by a registered dietitian instead.

How we evaluated this

I read the actual deliverable before the sales page, checked the recipe ingredients against what they realistically do for fullness and nutrition, separated the real one-time price from the optional add-ons, and confirmed how the ClickBank refund works versus the separate membership. No “medically reviewed” badge here — just a retired nurse reading the label and the receipts.

— Mara Vance

Here's what I'd actually do

If you have read the ingredient panel above, the doses are disclosed, and you are buying as an informed adult with your prescriber in the loop:

The Smoothie Diet earns its place here. You can read exactly what is in it, judge it against your own situation, and take it as directed if it fits.

Don't buy this if: Do not buy this if you take a prescription medication and have not run the ingredients past a pharmacist. The interactions on most of these products are real, not theoretical.

Mara Vance · Hospice nurse, retired (RN, 28 years)

Sources and review method

Supplement Skeptic reviews compare the visible label and sales claims against published research, dose ranges used in human studies, safety guidance, checkout terms, and refund mechanics. This page is not medical advice.

  1. Vendor sales page — ClickBank-listed sales page (active as of catalog import)

Frequently asked questions

Does The Smoothie Diet have side effects?
It's a food plan, not a supplement, so there's no drug to react to. That said, a sudden switch to two low-calorie smoothies a day can leave some people feeling hungry, low-energy, or lightheaded in the first few days, and a liquid-heavy plan may not provide enough of every nutrient long-term. Anyone with a medical condition, a history of disordered eating, or who takes medication that depends on steady food intake should talk to a clinician before starting. This is general information, not medical advice.
Is The Smoothie Diet a scam?
No. It's a real digital product from a company that has sold it for years through ClickBank, and you receive exactly what's described: a PDF with a 21-day schedule, recipes, and shopping lists. The honest caveat is the marketing oversells how fast and how permanent the results are, and optional add-ons plus a recurring membership are offered at checkout. Decline what you don't want and the core product is a straightforward $21 plan.
How much does it cost with all the add-ons?
The core plan is $21 one-time. At checkout you may be offered an add-on guide and one or two extra offers, and after purchase a recurring membership (commonly around $19–$29/month, sometimes after a short trial). Adding everything can push the total past $100. You can decline every add-on and keep your cost at $21. The recurring membership is billed separately from the core product, so cancel it directly if you don't want it.
Is The Smoothie Diet better than meal-prepping on your own?
If you already know how to build a balanced smoothie and enjoy planning, doing it yourself is free and just as effective. The Smoothie Diet's value is the done-for-you structure: a fixed 21-day schedule and shopping lists so you don't have to think. You're paying $21 for the plan and the convenience, not for secret ingredients.
How does the refund work?
Refund: 60 days, ClickBank-honored on the initial purchase. You email ClickBank support with your order ID. Any separate recurring membership charges are handled by the vendor, not ClickBank, so cancel that directly and dispute those charges with the vendor or your card issuer if needed.