Uthful vs AG1: Which daily supplement is better for vitality and longevity?

Updated February 2026

AG1 is one of the most recognisable daily supplements globally. For many people, it was their first introduction to the idea of a “once-daily nutrition habit.” UK brand, Uthful, was created more recently, with a narrower and more deliberate goal: to support how people actually feel as they move through their late 30s, 40s, 50s and beyond – energy dips, slower recovery, cognitive fatigue, and the desire to age well without stacking multiple supplements.

This difference in intent is clear when you look beyond branding and into formulation philosophy. We compared both products objectively, looking at ingredients, focus, and long-term value, to help you decide which is the better fit.

At a glance

All-in-one greens powder, AG1:

• Broad “all-in-one” greens and micronutrient supplement
• Heavy focus on gut health and micronutrient coverage
• Manufactured outside the UK
• Premium pricing driven partly by marketing and endorsements

All-in-one vitality & longevity supplement, Uthful:

• Targeted performance, vitality and longevity blend primarily for active people aged 40-60
• Includes longevity compounds like NMN, spermidine, pterostilbene and resveratrol, plus B vitamin complex, magnesium, Vitamin D3 & K2, MSM, L-theanine, Glycine, electrolytes, Zinc, and more in meaningful doses
• Manufactured in the UK using renewable energy, GMP-approved, third-party tested
• Designed for easy daily use without stacking multiple supplements

 Uthful vs AG1 | Summary Comparison

How the formulations differ in practice

AG1 takes a nutritional safety net approach. It includes greens, enzymes, probiotics, and a wide array of vitamins and minerals, typically at lower doses. This can be useful for people whose diets are inconsistent or who want broad coverage without thinking too much about specifics.

Uthful takes a more targeted approach. Instead of maximising ingredient count, it focuses on compounds that become harder to maintain with age: cellular energy (NMN), autophagy (spermidine), nervous system regulation (magnesium, L-theanine), hydration and recovery (electrolytes), and vitamin D sufficiency in the UK climate. 

Neither approach is inherently “right” or “wrong”. They are designed for different use cases. 

What AG1 does well

AG1 is a good nutrient safety net:

• Wide range of vitamins and minerals
• Digestive enzymes and probiotics
• Convenient once-daily habit

For people with a poor diet or those primarily focused on general micronutrient coverage, AG1 has earned its reputation.

Where Uthful takes a different approach

Uthful is not a greens powder. It’s built around how people actually feel as they age. Uthful includes:

• 500mg NMN for cellular energy and longevity pathways
• Spermidine for autophagy support
• Magnesium (malate & glycinate) for energy and recovery
• Electrolytes (sodium + potassium) for hydration and performance
• L-theanine, zinc and choline for calm focus
• Higher doses of vitamin D3, K2 and B-vitamins for real-world energy support

Uthful's philosophy is "get most of your nutrients from food and only supplement what's hard or impossible to source daily from a healthy diet."

Ingredients: focus vs breadth

AG1 prioritises breadth; many ingredients at lower doses. Uthful prioritises fewer ingredients, dosed intentionally, focused on: energy, cognition, recovery, and longevity. For most adults 35-60 years old, this difference matters.

Price & value

AG1 is one of the most expensive daily supplements on the market at £79/pm. Uthful costs less at £69/pm (or £2.30/serving), while also replacing multiple supplements (NMN, resveratrol, magnesium, electrolytes, B vitamin complex, Vitamin D3 + K2, etc) that many still take alongside AG1. Making Uthful the better bet for those that want convenience and value.

Verdict

If you want a greens-first nutritional safety net, AG1 may suit you. If you want a daily supplement designed to support how you feel, perform, and age – with UK manufacturing and longevity ingredients AG1 doesn’t include – then Uthful is likely the better choice for many. 

For years the daily “all-in-one” category was dominated by brands like AG1 – powders filled with greens, adaptogens, probiotics, and dozens of trace nutrients. They’re convenient, familiar, and positioned as your daily nutrition in a scoop. But once you dig into why and how they’re formulated, you start to see a philosophical divide with new brands like Uthful in the UK.

At its core, Uthful was built from lived experience, not just nutrition industry trends. Its founder, Simon Swan, realised in his forties that despite eating well, training, and sleeping reasonably, he still felt “not bad” rather than “thriving” on most days. This sparked a deeper question: what separates going through the motions from actually feeling sharp, strong and energised each day? 

That question, backed by thousands of client conversations with nutritional therapist Joanne Hill, shaped Uthful’s philosophy: targeted, evidence-driven support for what truly limits performance in real life after 40, not a long laundry list of “everything possible.”

AG1 and similar formulas like IM8 cast a very wide net. With 70+ ingredients in small doses, they aim to be a nutritional safety cushion That’s not inherently bad, but breadth is not the same as impactful depth; a 75-ingredient formula can easily include compounds at doses that are too low to move the needle, especially for middle-aged adults whose metabolic throughput, recovery capacity, and cellular energy systems are shifting. 

Uthful intentionally focuses on fewer compounds (24), each added for a specific, evidence-based role, at meaningful doses most people can’t realistically get from diet alone, like 500mg NMN in a single scoop. This isn’t about “more” vs “less.” It’s about precision over excess, grounded in the belief that supplementation should fill gaps, not paper over a poor diet or sleep pattern. 

AG1’s approach can feel like nutritional insurance: broad but shallow. Uthful is more like a targeted performance protocol that complements good diet and healthy lifestyle with compounds that directly support energy metabolism, cognitive clarity, recovery, and long-term health pathways like NAD+ and autophagy. 

Uthful’s formulation reflects a core belief shared by its founder: health is a daily habit built on consistency, not volume. And the right nutrients in the right places amplify your body’s own capacity, rather than turning a supplement into a hedge for other lifestyle shortcomings.

Bottom-line takeaway

AG1 is a strong, greens-based nutritional safety net. Uthful is designed to help you feel sharp and energised day-to-day while supporting energy and healthy aging.

 FAQs:

Is Uthful the same as AG1?

No. AG1 is a greens-based nutritional supplement, while Uthful is a performance and longevity blend designed for adults aged over 35.

Does AG1 contain NMN or spermidine?

No. Uthful includes both NMN (500mg per day) and spermidine; AG1 does not. 

Is Uthful made in the UK?

Yes. Uthful is manufactured in the UK in a GMP-approved facility.