Choosing between weight management approaches is genuinely hard, and most comparison articles solve that by declaring a winner. This one will not, for a reason worth stating plainly.
The honest position up front: as of 22 September 2026, Nu Skin's US catalogue still lists the ageLOC® TR90® GreenShake and the TR90 JumpStart 2pk, but TR90 Control and TR90 Fit no longer appear, and the 30- and 90-day kits are gone. We stock the GreenShake and not the JumpStart. TR90 as a full programme is not a thing we can sell you, so comparing it as one would be dishonest.
What follows is therefore a plainer piece: what each approach actually does, and where a protein shake fits into any of them.
Calorie counting
Track intake, stay under a target. It is simple, it is free, and it works for a lot of people. Its weaknesses are the ones everybody already knows: tracking is tedious, estimates drift, and it does nothing by itself about the metabolic adaptation that makes maintenance harder than loss.
This page used to quote a figure for how badly people underestimate their intake. We could not source it, so it has gone.
Meal replacement
Swap a meal or two for a shake. It reduces decisions as much as calories, which is often the real benefit. The TR90 GreenShake sits in this category — Nu Skin describes it as "a delicious vanilla flavored lactose-free, gluten-free, soy-free shake, using vegetarian proteins."
We are not going to tell you it is nutritionally superior to other shakes on the market. We have not tested them, Nu Skin publishes no comparison, and this page used to make that claim anyway.
Ketogenic diets
Very low carbohydrate. Effective for plenty of people, hard for plenty of others, and a genuinely poor fit for some. Whether it suits you is a question about your life and your health rather than about macronutrients, and it is worth asking a doctor if you have any condition in play.
Intermittent fasting
Eating within a window. Like calorie counting, it works largely by reducing intake, and like everything else here, it needs enough protein inside the window to be worth doing.
Where a shake actually fits
In all four cases the same thing is true: a protein shake is a convenience, not a strategy. It makes hitting a protein target easy on days when cooking is not going to happen. That is a real benefit and it is not a magic one.
What actually holds up across every approach on this page: enough protein, resistance training, sleep, and something you can still be doing in a year.
Frequently Asked Questions
Is TR90 still available?
Partly. The GreenShake and the JumpStart 2pk are still listed by Nu Skin; TR90 Control and TR90 Fit are not. We stock the GreenShake.
Which approach is best?
The one you will still be doing in six months. We are not going to rank them for you, and anyone who does without knowing your circumstances is guessing.
Can I use the GreenShake alongside another approach?
Yes. It is a meal replacement shake; it does not require a programme around it.
Where to Buy
Every product from NuBodyRx.com is 100% authentic and ships fast from the US. There is no membership, no distributor account and no monthly order required.
Learn more about buying Nu Skin without a distributor.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Individual results vary.