Free Soul Protein Review UK 2026: A Nutritionist's Verdict

Free Soul protein powder delivers on its “for women” promise, and the added vitamins and iron are meaningful additions rather than marketing extras. Here's the full nutritionist review for you, built from the label, the research and what customers report.

Free Soul markets its protein powder as formulated specifically for women. The claim appears on the packaging, in the brand story, and across most of the editorial coverage the brand has generated. The question you should expect a review to answer, and most don't, is whether that “for women” label represents a real difference in formulation or a positioning choice dressed up as nutritional science.

I'm Clemmie Rose, holding a Diploma in Nutritional Therapy from the College of Naturopathic Medicine and BANT registration, with clinical experience running nutrition clinics at The Wellness Clinic at Harrods. This review covers the vegan protein blend, the added vitamins and actives, what customers say about taste and texture, and value, so you can judge it for yourself.

How this review was built: from Free Soul's own label, the themes in retailer and customer reviews, and named sources (NHS, BDA and EFSA), so you can see where each claim comes from. It is not a hands-on trial.

In one sentence: Free Soul is a coherent women's protein blend with sound nutritional reasoning behind its pea-plus-hemp base and added actives, but at from £1.35 per serving you're paying a premium for the micronutrient layer, and you should decide whether you need it.

Free Soul is a UK supplement brand positioning itself squarely at women aged 25-45 with an interest in fitness, hormonal health, and clean nutrition. The brand offers two core protein lines: a vegan blend and a whey blend. This review covers the vegan protein blend, which is the more frequently searched product and the more interesting formulation case if you care about what's in the scoop.

On Free Soul's own product page, you'll see the vegan blend in four flavours: Salted Caramel, Chocolate, Berry and Vanilla. The standard serving size is 30g, delivering approximately 20g of protein per serving from a pea protein isolate and hemp protein isolate base. The product is sold direct from the Free Soul website.

This review is built on evidence, not a first-person trial. I haven't used Free Soul myself, and I'd rather you know that than assume otherwise.

I read the label for serving size, protein per serving, cost per serving and added actives. Anything about taste or digestion below reflects what customers report, not my own use, so you should treat it as a summary of other people's experience.

This is the section most reviews skip or handle with a vague nod to "added vitamins and minerals." It deserves a direct answer for you.

Free Soul's vegan blend includes added iron and B vitamins (specifically B6 and B12) alongside the protein base. Each of these has a documented nutritional rationale for women of reproductive age, so if you're weighing up whether the "for women" label is worth paying for, this is where your answer sits.

Iron is the most straightforward case. Women of reproductive age have higher iron requirements than men: the NHS puts the amount you need at 14.8mg per day for women aged 19 to 49, compared with 8.7mg for men. A single serving of Free Soul vegan protein delivers 6mg of iron.

That's approximately 40% of your daily RNI per serving if you're a woman aged 19 to 49, which is a meaningful contribution rather than a token inclusion.

For context on safety, EFSA sets its safe level of intake for iron from food and supplements at 40mg a day for adults, so 6mg a serving leaves you well inside that limit.

Absorption is still affected by other dietary components, so taking it alongside vitamin C and away from calcium-rich foods improves your uptake.

B6 and B12 do different jobs. NHS guidance on B vitamins says B6 helps your body use energy from protein and form haemoglobin, and B12 helps make red blood cells and release energy from food. The same page notes that vegans may not get enough B12 from diet, which is a fair reason to look for it in a vegan product like this one. The British Dietetic Association goes further: vitamin B12 is not available from plants, so if you're vegan you need fortified foods or a supplement.

One caveat before you buy: the doses are on the low side. A targeted iron supplement can deliver 14mg or more per capsule. What Free Soul gives you is a protein product with micronutrient support layered in, not a micronutrient supplement with protein added.

The distinction matters for how you use it. If you're iron-deficient, this won't replace a targeted supplement. If you're looking for a protein powder that pulls double duty on micronutrient support, the formulation rationale holds.

If you're wondering about PCOS, B6 here won't treat it. The NHS says women need about 1.2mg of B6 a day, and a serving gives you 0.4mg, roughly a third of that. It's a sensible inclusion, not a PCOS treatment, so speak to your GP or a registered practitioner if you're managing symptoms.

The base protein you get in Free Soul vegan is a pea protein isolate and hemp protein isolate blend. This combination is a more distinctive formulation choice than the more common pea-and-rice approach: pea protein isolate does the heavy protein lifting with a strong lysine profile, while hemp protein isolate contributes a complementary amino acid range. Hemp contains all nine essential amino acids, which makes the pea-plus-hemp pairing a complete amino acid profile rather than a compensatory blend.

A 30g serving gives you approximately 20g of protein. That's a 67% protein density, which is solid for a plant blend that also contains added vitamins, natural flavours, and sweeteners (the label lists xylitol and steviol glycosides).

If you train regularly, leucine is worth your attention. Plant proteins need careful blending to reach the roughly 2.5-3g of leucine per serving that research links to a strong muscle-building response, and Free Soul doesn't publish a leucine figure, so I can't tell you where it lands. Our pea protein vs soy protein comparison explains why this matters. If you're doing moderate resistance training, a 20g serving will likely serve you well. If maximising muscle gain is your goal, whey isolate keeps an edge on leucine per gram.

The label also lists flaxseed powder, which is where any omega-3 in your scoop comes from.

Digestibility is where the pea-hemp blend makes its case to you. The best plant-based protein powder UK roundups consistently note that pea-based combinations cause less digestive disruption than soy or legume blends for many users. Hemp protein is similarly well-tolerated and doesn't carry the phytoestrogen concerns sometimes raised about soy, so your gut may have less to complain about.

There are no proprietary blend obscurations for you to decode here. Free Soul lists its ingredients transparently, and the protein-per-serving figure is stated on the label, and Free Soul says on its product page that its ingredients and products are independently tested. I haven't seen the lab results, so treat the claim as the brand's own.

Some brands inflate the protein figure you see on the tub through amino acid spiking (adding free amino acids that register as protein in standard nitrogen testing but don't perform the same biological function). Free Soul's label lists no free amino acids, though a label can't rule it out.

Taste is where Free Soul's reviews divide, so your pick of flavour matters.

Customers most often praise the Vanilla flavour, so start there if you can. Reviewers describe it as smooth and pleasant, closer to a light milkshake than a supplement drink. Sweetness is the recurring theme: it is present but not cloying in plant milk, and more dominant when mixed with water.

That pattern is common with sweetened plant proteins, so if you prefer a mild drink, mix it with plant milk.

Chocolate is where the reviews diverge, and your tolerance for sweetness decides it. Customers describe it as noticeably sweeter than the Vanilla, with a heavier texture that some find gritty when mixed in water. Reviewers say plant milk reduces the grittiness, but the sweetness remains prominent.

If you're used to darker, less sweet protein powders, you'll likely find this one sweet-heavy. If your reference point is a chocolate shake, it'll probably sit well.

Mixability gets few complaints in customer reviews, and the pea and hemp base is generally easier on digestion than soy or high-fibre blends. I haven't tested it myself, so I can't report on bloating from experience. Your response may differ, particularly if you have a pea protein sensitivity, but the formulation isn't high-risk for your gut.

This is where Free Soul's case becomes harder to argue to you.

At around £1.35 per serving (a 600g bag from £27 gives you 20 servings at 30g each, or £45 per kg), Free Soul sits in the premium tier for plant protein. The table below puts it beside two of the rivals you're likely to be weighing. I read each price from the retailer's own page on 1 October 2026. Prices and sale offers change, so check the page before you buy.

Free Soul costs at least twice as much per kg as either rival, which you'll feel quickly on a monthly tub. Per gram of protein the gap is similar: Free Soul works out at about £6.75 per 100g of protein against about £3.03 for Myprotein. The premium buys the iron and B vitamins, not extra protein. Myprotein and Bulk serving sizes differ from Free Soul's, which is why the per-serving column states each brand's own scoop.

On discounts, freesoul.com currently shows 10% off your first order when you sign up to the newsletter, 20% off when you subscribe, and 15% off through its refer-a-friend offer (checked 1 October 2026). Offers change, so confirm at checkout.

If your main goal is the most protein for the lowest price per gram, Free Soul isn't the right product for you. The premium pays for the added micronutrients, and if you already take a comprehensive women's multivitamin, you may be paying twice for the same nutrients.

It suits you if you're a woman aged 25-45 who wants a convenient, palatable vegan protein with some micronutrient support, particularly if you're not taking a separate iron supplement. If budget is your main concern, look elsewhere.

It won't suit you if you have clinically low iron, because the dose is too low to correct it and you'll need advice from your GP. It also falls short if your protein goal is above 25g per session, or if you dislike the taste of xylitol and steviol glycoside sweeteners.

If you're wondering when to have it, build the shake into a routine you already keep rather than treating it as an add-on. Pairing it with your morning coffee is an easy habit to stack. For the coffee half of that pair, the best coffee beans UK guide is a sensible starting point.

The iron and B vitamin figures above come from the NHS iron page, the NHS B vitamins page and Free Soul's product page. Check them yourself before you buy.

Balance Journal is published alongside Balance Coffee, founded by James Bellis. Balance Coffee does not sell protein powder and is not featured in this review. Some links you click in this article may be affiliate links.