Vega One All-in-One Shake is the pick for the buyer who wants their meal replacement to also be their greens powder and their multivitamin. One ~160 kcal scoop delivers 20 g of multi-source plant protein (pea, hemp, sacha inchi, flax), 50% daily value of vitamins and minerals, the equivalent of 6 servings of greens, roughly 25% DV of fiber, omega-3s and probiotics — with only ~1.5 g of sugar. On paper that's one of the most complete low-calorie profiles in our eight-pick ranking, and it fits a weight-loss deficit effortlessly: high protein, negligible sugar, meaningful micronutrition, tiny calorie load. So why #7? Sensory and economic reasons, stated plainly. The hemp-and-greens base makes an earthier, grittier shake than the smooth engineered options, and its reviews split more than any pick above it — a real adherence risk in a category whose entire benefit is whether you keep drinking the thing. And its per-serving value is only average: cheaper than the premium picks, clearly pricier than Orgain or Soylent. Nothing here is a nutritional flaw — if you specifically want the veggie-forward all-in-one and your palate handles 'green,' Vega One is a good, honest, low-sugar choice. The category rule stands: it's food, not a fat-burner — replace a meal with it inside a calorie budget. Full breakdown below.
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Read the complete Weight Loss guide →A genuinely broad profile: 20 g of multi-source plant protein meets our bar, ~1.5 g sugar is among the lowest here, and the 50% DV vitamin/mineral panel plus 6 servings of greens, omega-3s and probiotics out-breadths most of the lineup. Non-GMO Project Verified and vegan. It scores below the leaders on protein ceiling and certification depth (no USDA Organic), not on discipline.
20 g of protein and ~25% DV fiber at ~160 kcal is honest light-meal satiety — comfortably better than a thin protein drink, and the near-zero sugar avoids rebound hunger. Like the other ~150-160 kcal picks, it holds a breakfast slot well and wants a fruit pairing when replacing a genuinely large meal.
Mid-table: cheaper than Ka'Chava and Ample, clearly pricier per serving than Orgain or Soylent. The fair reframe is consolidation — if it replaces a separate greens powder and multivitamin in your budget, its effective value jumps. As a standalone meal-replacement purchase, average is the honest grade.
The lowest taste score in our lineup, reported plainly: the hemp-and-greens base drinks earthier and grittier than the smooth engineered shakes, and review sentiment divides sharply — devoted fans on one side, abandoned tubs on the other. Blending cold with fruit or a milk alternative helps substantially. Know your palate before committing.
“All-in-one nutritional shake: plant protein, greens, vitamins/minerals and probiotics in one scoop.”
The live Amazon listing confirms the positioning — Vega One All-in-One Nutritional Shake, plant-based vegan protein powder, non-dairy, gluten-free, Non-GMO. The stated panel (20 g protein, 50% DV vitamins/minerals, 6 servings of greens, probiotics, omega-3s) is the basis of its all-in-one identity and our scoring.
“20 g of plant protein with very low sugar (~1.5 g).”
The label numbers used in our ranking — 20 g multi-source plant protein, ~1.5 g sugar, ~160 kcal in water — clear the category bar (≥20 g protein, low added sugar) cleanly. On sugar discipline it keeps company with our top three rather than the sweetened middle of the market.
“Supports weight management as part of a healthy routine.”
True only via the category's honest mechanism: a low-calorie, high-protein, known-calorie serving makes a deficit easier to hold, and meal-replacement structure modestly outperforms food-based dieting in meta-analyses (Astbury 2019; Min 2021). The greens and vitamins are nutrition breadth, not a fat-loss mechanism — the deficit does the work, here as everywhere.
Judged purely as a meal replacement, Vega One is good-not-great — that's what #7 means. Judged as a replacement for three products, it gets interesting: if your current stack includes a greens powder, a multivitamin and a protein shake, one scoop covering 50% DV micronutrients, 6 servings of greens and 20 g of protein consolidates all three at a single mid-range price. That's the buyer this product genuinely wins for, and the lens that turns its average value score into a bargain.
At ~1.5 g of sugar, Vega One sits with our top three on the metric this category most often fails — well clear of Ka'Chava's ~6 g and in a different universe from the 15-30 g sugar-bombs sold as 'weight-loss shakes.' Combined with ~160 kcal and 20 g of protein, the deficit arithmetic is impeccable: replace a 700 kcal lunch and you bank over 500 calories with no blood-sugar rollercoaster afterward. Nothing about its #7 rank is a nutrition problem.
The pattern in Vega One's reviews is bimodal: people who like greens-forward flavors reorder for years; people who don't, quit inside a week — and an abandoned tub delivers exactly zero grams of protein. The self-test: if you already drink greens powders, green smoothies or hemp products happily, you'll likely be fine, especially blended cold with a banana. If your history says smooth-and-sweet or nothing, respect that data and buy Ka'Chava (taste), Orgain (smooth value) or Soylent (neutral) instead. Adherence is the entire benefit; buy for your actual palate.
At ~160 kcal in water, a Vega One serving is a light meal in the same class as Garden of Life and Orgain: superb for calorie banking, honest about needing help for big-meal slots. Blend it with fruit or make it with a milk alternative when it's standing in for a full lunch, and count the addition. And the rule that closes every review in this series: it replaces a meal inside a calorie budget or it does nothing — drunk on top of your normal eating, even 160 kcal a day compounds against you.
Vega One's numbers are quietly excellent for weight loss: 20 g of plant protein, ~1.5 g of sugar, half your daily vitamins and minerals, six servings of greens, fiber, omega-3s and probiotics — all inside ~160 calories that any deficit can absorb. Nothing about its #7 ranking is a nutritional criticism. It sits there because taste is the gatekeeper (the earthy, gritty profile divides reviews sharply, and an unfinished tub helps nobody) and because its standalone value is merely average against Orgain and Soylent. So the verdict is a targeted 'consider': if you're consolidating a greens powder, multivitamin and protein shake into one scoop — or you already know greens-forward flavors work for you — Vega One is a genuinely good, low-sugar buy that the ranking undersells for your case. If you're taste-risk-averse or purely price-shopping a meal replacement, the picks above fit more people. Either way the category rule is unchanged: it's food, not a fat-burner. Replace a meal with it inside a calorie budget, and the structure — backed by the meal-replacement meta-analyses (Astbury 2019) — does its modest, real work.
Check Vega · 20 g plant protein, 6 servings of greens, 50% DV vitamins, probiotics, ~1.5 g sugar · French Vanilla on AmazonThe higher-ranked greens-adjacent pick: USDA Organic, raw, sprouted, NSF-certified, 20 g protein and 6 g fiber at ~150 kcal. Choose it for the deeper certification stack.
See it on the list →The value pick: organic, 20 g protein, 9 g fiber, no added sugar, smoother-mixing, at the lowest powder price here. Choose it if price or texture is the deciding axis.
See it on the list →The taste-first superfood option: 25 g protein, 85+ superfoods, and the best flavor in our lineup at a premium. Choose it if taste is what keeps you consistent.
See it on the list →23 RCTs / 7,884 adults: meal-replacement programs produced ~1.44 kg more weight loss at one year than food-based diets, via easier adherence to a calorie deficit. The evidence frame for Vega One's use-case — a ~160 kcal, 20 g-protein known-calorie serving swapped in for a larger meal.
Meta-analysis of RCTs: meal-replacement calorie-restricted diets beat food-based calorie restriction. Reinforces that the deficit — not the greens, vitamins or probiotics — is the mechanism; Vega One's broad panel is nutrition breadth on top of the same honest math.
