Is the Smoothie Diet or Old School New Body better for women over 40?

Neither is simply better, because they pull different levers. The Smoothie Diet is a 21-day food plan built around meal-replacement smoothies, so it works on what you eat. Old School New Body is a digital strength program built on brief resistance sessions, so it works on how you move. If your food is the messier half of your life right now, start with the Smoothie Diet. If you know you are not doing any real strength work, Old School New Body addresses the lever many over-40 bodies neglect. They are not rivals so much as two halves of the same picture.

Can I do both programs at the same time?

You can, and in some ways they fit together neatly, since one handles food and the other handles movement. The honest caution is doing too much at once. Three weeks of a new eating structure plus a brand-new strength routine is a lot of change to sustain, and change that does not last helps nobody. If you want both, consider running the Smoothie Diet first as a short reset while you add just two gentle strength sessions a week, then lean into Old School New Body once your eating feels settled. Layer the habits rather than piling them on all at once.

Do both have a money-back guarantee?

Yes. Both sell through ClickBank, whose standard policy allows returns within 60 days of purchase, and the Smoothie Diet's sales page promises a full 60 days. Refunds are handled by ClickBank rather than the creators: you contact ClickBank order support with the receipt from your purchase email. ClickBank grants returns at its discretion and may refund less than the full price for a digital product you have already used, so use the window early if a program clearly is not for you.

Which one costs more?

Both are one-time digital purchases with no shipping. At last check, the Smoothie Diet was listed at $27, down from a regular $47, while Old School New Body's price moves with promotions. Both may offer optional add-on guides at checkout that are easy to decline, and promotional prices move around, so confirm the current figure on each official site before buying. Cost is unlikely to be the deciding factor here; the better question is which lever, food or strength, you most need to work on first.

I only want to buy one. How do I choose?

Ask which half of your life feels more out of hand. If your meals are chaotic, skipped, or leaning on convenience food, the Smoothie Diet gives you three weeks of decisions made for you, which can break the drift. If your eating is roughly fine but you have not lifted anything heavier than the groceries in years, Old School New Body points you at the strength work that protects midlife muscle. Pick the program that fixes your weaker link first, use its guarantee, and add the other later once the first habit sticks.

The Smoothie Diet vs Old School New Body After 40

If you spend any time on Pinterest, you have almost certainly seen both of these programs, and you may be wondering which one is worth your money after 40. The trouble is that they get sold the same way, with the same urgent promises, even though they do completely different jobs. The Smoothie Diet is a food plan. Old School New Body is a strength plan. Comparing them head to head feels a little like comparing a cookbook to a set of dumbbells, and yet plenty of women over 40 are quietly choosing between the two because the budget only stretches to one.

So let us make the choice clear. This comparison is based on our research into each program’s materials and structure, not a personal test of either, weighed through the one lens that matters here: what a midlife body actually needs. Both are inexpensive, both sit under ClickBank’s 60-day return policy, and both are more modest than their marketing suggests. The real question is not which is better in the abstract, but which lever, food or movement, you most need to pull first.

The short answer

Pick the Smoothie Diet if the messy half of your life is food: skipped meals, convenience dinners, endless small decisions that wear you down. It hands you a 21-day schedule, ready recipes, and weekly shopping lists so someone else makes the choices for three weeks (The Smoothie Diet). Our full Smoothie Diet review covers exactly what is inside and where it falls short.

Pick Old School New Body if your eating is roughly fine but you are doing no real strength work, which is a common gap for women over 40. It is a brief, repeatable resistance routine you can do at home. Our full Old School New Body review breaks down the F4X method and its honest limits, and our short take on why Old School New Body keeps coming up after 40 explains the program’s odd staying power.

Do both, in sequence, if you want the full picture and can pace yourself: run the food reset first while you add two gentle strength sessions a week, then shift your focus to the strength program once your eating feels settled. Layer the habits rather than starting both cold on the same Monday.

This article is for information only and is not medical advice. Talk to your healthcare provider before changing your diet or exercise routine, especially if you have a medical condition or take medication. If you have diabetes, take any medication, or have a history of disordered eating, talk to a clinician before starting any meal-replacement plan, this one included.

Side by side: the facts

	The Smoothie Diet	Old School New Body
What it works on	What you eat (nutrition)	How you move (strength)
Format	21-day meal-replacement smoothie plan	Brief home resistance routine
Duration	21 days, then you are on your own	Ongoing habit, phased progression
Price	$27 at last check (regularly $47), one-time	Varies with promotions, one-time
Effort	Low: a blender and a shopping list	Moderate: short sessions, learned form
Guarantee	60-day, via ClickBank	60-day, via ClickBank
Biggest gap	Runs light on protein, no maintenance plan	Generic plan, dated marketing
Best for	Breaking food drift with total structure	Starting the strength work midlife needs

All prices are approximate as of mid-2026 and move with promotions, so check the current figure on each official site before you buy.

Which should you pick? A quick decision framework

“My eating is all over the place.” The Smoothie Diet. Its whole value is the removal of choices for three weeks. If decision fatigue around food is the thing dragging you down, a set schedule and a done-for-you shopping list can genuinely break the pattern and give you a calmer starting point. If you do go that route, our guide on making the Smoothie Diet work after 40 covers the protein and exit-week fixes it needs.

“I never do any strength work.” Old School New Body. Its brief, form-first sessions point you straight at the lever many over-40 bodies neglect. If you have not deliberately worked a muscle in years, this is the more valuable buy, because strength work is the thing quietly protecting your future independence.

“My budget is very tight.” Check both current prices, then choose on need, not cost. A program that fixes your weaker link is worth the extra few dollars over one that polishes what you already do reasonably well.

“I want a short, motivating win.” The Smoothie Diet. Three weeks with a clear finish line is easier to rally behind than an open-ended routine, and that momentum can carry you into the strength habit afterward. Just plan your day-22 return to normal meals before you start; something as simple as a warm oatmeal or smoothie breakfast built around protein keeps the structure going without the program.

“I want the whole picture and I am patient.” Both, in sequence. Food first as a reset, strength second as the keeper. They cover the two halves midlife health actually turns on, as long as you do not try to overhaul everything in the same week.

The over-40 lens: why this is really a two-lever question

The reason this comparison is trickier than it looks is that a midlife body needs both levers, and these programs each offer only one.

The food lever, honestly. The Smoothie Diet works through an ordinary calorie deficit, nothing more exotic than that (Healthline), and for a busy, decision-tired season of life, three weeks of “just follow the list” has real value. Its weakness for a body over 40 is protein. After age 30, adults can lose as much as 3% to 5% of their muscle mass per decade (Harvard Health), and fruit-forward smoothies run low on protein unless you add it deliberately; one example recipe from the plan has less than 4 grams per serving (Healthline). If you choose the food program, add a scoop of protein powder or a serving of Greek yogurt to the smoothies and build your one solid meal around protein. And if you would rather skip the program entirely, our seven food-first habits for steady energy build the same structure with ordinary food.

The strength lever, honestly. Old School New Body addresses the other half. Its brief resistance sessions map reasonably well onto what a midlife body needs, because progressive resistance training is the best means to build muscle mass at any age (Harvard Health), the muscle that keeps your metabolism steadier and your joints supported. Its weakness is that it is a generic plan wrapped in dated, oversold marketing, so you supply the discipline and the sensible progression yourself.

Put plainly: the Smoothie Diet can help you eat with less chaos, and Old School New Body can help you build the strength that food alone never will. Neither one covers both. If you want the plain-English background on why muscle and protein matter so much now, our metabolism after 40 explainer walks through it without the doom.

Both are tools, not miracles

Here is the honest part neither sales page will tell you: neither program transforms anyone on its own. They are modest, inexpensive frameworks, and the value comes from doing the unglamorous work they point you toward, consistently, for longer than any 21-day timer. What a structured food reset tends to support is a calmer relationship with meals and a break from decision fatigue. What a simple strength routine tends to support is steadier movement, better posture, and muscle that quietly protects your joints. Both are worth having. Neither is the dramatic event the advertising implies, and any honest guide should say so.

If you are still weighing the two, remember the guarantee cuts your risk either way: 60 days is long enough to know whether a program fits your real life. Buy the one that fixes your weaker link, use the refund window if it clearly does not suit you, and treat whichever you choose as scaffolding for a habit rather than a solution in a box.

The honest bottom line

The Smoothie Diet and Old School New Body are not really competitors; they are two halves of the same midlife picture, food and strength. If your eating is the chaos, start with the Smoothie Diet, add protein, and plan your exit week before you begin. If you are simply not doing any strength work, Old School New Body sends you at the lever many women over 40 neglect. Both are cheap, both sit under ClickBank’s 60-day return policy, and both ask you to bring the consistency they cannot supply.

Choose the one that mends your weaker link first, and add the other when the habit sticks. Everything in our honest program reviews is held to the same standard: mechanics over marketing, and no promises we cannot back.

Our pick Check The Smoothie Diet price (affiliate link)

Our pick Check Old School New Body price (affiliate link)

Our pick Check Protein Powder price (affiliate link)

Frequently Asked Questions

Is the Smoothie Diet or Old School New Body better for women over 40?: Neither is simply better, because they pull different levers. The Smoothie Diet is a 21-day food plan built around meal-replacement smoothies, so it works on what you eat. Old School New Body is a digital strength program built on brief resistance sessions, so it works on how you move. If your food is the messier half of your life right now, start with the Smoothie Diet. If you know you are not doing any real strength work, Old School New Body addresses the lever many over-40 bodies neglect. They are not rivals so much as two halves of the same picture.
Can I do both programs at the same time?: You can, and in some ways they fit together neatly, since one handles food and the other handles movement. The honest caution is doing too much at once. Three weeks of a new eating structure plus a brand-new strength routine is a lot of change to sustain, and change that does not last helps nobody. If you want both, consider running the Smoothie Diet first as a short reset while you add just two gentle strength sessions a week, then lean into Old School New Body once your eating feels settled. Layer the habits rather than piling them on all at once.
Do both have a money-back guarantee?: Yes. Both sell through ClickBank, whose standard policy allows returns within 60 days of purchase, and the Smoothie Diet's sales page promises a full 60 days. Refunds are handled by ClickBank rather than the creators: you contact ClickBank order support with the receipt from your purchase email. ClickBank grants returns at its discretion and may refund less than the full price for a digital product you have already used, so use the window early if a program clearly is not for you.
Which one costs more?: Both are one-time digital purchases with no shipping. At last check, the Smoothie Diet was listed at $27, down from a regular $47, while Old School New Body's price moves with promotions. Both may offer optional add-on guides at checkout that are easy to decline, and promotional prices move around, so confirm the current figure on each official site before buying. Cost is unlikely to be the deciding factor here; the better question is which lever, food or strength, you most need to work on first.
I only want to buy one. How do I choose?: Ask which half of your life feels more out of hand. If your meals are chaotic, skipped, or leaning on convenience food, the Smoothie Diet gives you three weeks of decisions made for you, which can break the drift. If your eating is roughly fine but you have not lifted anything heavier than the groceries in years, Old School New Body points you at the strength work that protects midlife muscle. Pick the program that fixes your weaker link first, use its guarantee, and add the other later once the first habit sticks.

Sources & references

Before you go

The 7-Day Protein-First Meal Plan for Women Over 40

A complete protein-first week, finished for you: your personal protein target, a one-page shopping list, 21 recipes at 25-35 g protein each, and a timed 90-minute prep schedule. Printable PDF, paired with a free 7-lesson email course.