Sweet science

Welcome back to Wellworthy. Here’s this week’s health and wellness rundown:

• Inside an elite fitness coach’s gym bag

• Running tech breakthroughs and how sweeteners spark “metabolic chaos" 

• Launches from 247, Ketone-IQ, Blume, On, and more

— Let’s go
Ash Read, co-founder, Wellworthy.

P.S. There’s still time to enter our running season giveaway. Click here to win over $1k worth in elite gear.

Health Stack: Rory Knight

Each week, we tap our network of health and fitness experts to offer personal insights and recommendations.

This week: Rory Knight, director of fitness at Mvmnt. With over 20 years in wellness, Knight’s worked with giants like Nike, Technogym, and Under Armour. 

Now, he juggles the same grind as many of us — balancing work and well-being. “Most of my day is spent in the office, rather than at the gym,” he admits. Between meetings, product testing, and team leadership, carving out workout time requires focus.

“My goal? Train smart and sustainably so I wake up feeling good about life.” Prepping for a HYROX event in Berlin, Knight blends intense sessions with recovery and prehab. He schedules workouts “late in the day” to lock in “non-negotiable ‘me’ time.”

Here’s Knight to share his go-to products:  

• Saucony Endorphin Speed Pro 4: “This is the ultimate HYROX shoe — the perfect blend of speed and propulsion for your runs, with balance, stability, and traction across the stations.”

• Mvmnt: “A fitness platform obsessed with quality workouts and recovery. Its short mobility flows keep me consistent—3-4 times a week is my sweet spot.”

• Beats Fit Pro: “No workout happens without these. I love the sleek design, killer sound, and that they stay put while running or doing burpees.”

• Apple Watch: “My trusty workout companion logging all  any activity. Bonus: I can match the strap to my fit.”

• SIS Gels: “These ensure that I remain fuelled for my longer runs.”

• Lululemon Always in Motion Boxer: “Up there with the comfiest boxers I’ve ever worn.”

Run harder, recover smarter: The ultimate runner's recovery pack

There’s still time to enter our runner’s recovery giveaway with The GIST and Hyperice. 

Whether you're crushing marathon training or just hitting your neighborhood loop, this pro recovery pack will help you bounce back after logging miles: 

• Hypervolt 2 massage gun ($199 value)

• Normatec Go compression calf sleeves ($349 value)

• Venom 2 Back wrap for next-level heat therapy ($249 value)

• $200 cash to spend on new gear or post-run snacks

• WHOOP Band + 1-year membership to track your recovery

• KANE recovery shoes 

Level up your running game — enter now for this all-in-one recovery system.

On Our Radar 

Interesting stories we spotted this week → 

Body Programming: New data reveals cold-season babies have 78.2% higher brown fat activity — the calorie-torching kind — vs. 66.0% for warm-season births. This “thermal imprinting” could fend off age-related weight gain, no diet or gym required.

Sweet Science: Sucralose increases appetite-center blood flow by 3%, while sugar and water drop it by 6%. Study participants were three times hungrier after sucralose vs. sugar, hinting artificial sweeteners trigger “metabolic confusion”— meaning sweetness without calories scrambles hunger signals.

Running Innovation: Avelo’s “Supertrainer,” launching in May, claims to be the world’s first smart running shoe. Born from founder Royi Metser’s health wake-up call, it tracks impact and form, syncing to an app that coaches you to run stronger and safer. Get an exclusive first look at it here.

High-Impact Longevity: Four months of seasonal HIIT reverses cardio aging. Over eight years, metabolic syndrome patients on a 16-week Norwegian 4x4 (4-min intervals at ~90% max heart rate) program boosted aerobic capacity by 14% with no extra meds, while controls lost 7% and upped meds by 137%. Seasonal sprints might be the longevity hack.

Just Dropped: 247’s first women’s line

Represent’s activewear brand 247 launched its first women's collection. The initial 14-piece line combines high-performance functionality with Represent's signature streetwear aesthetic. Split into two SS25 drops, the collection maintains 247's core philosophy: versatile pieces for gym and everyday wear. Shop now.

More drops perfect for:

• Boosting Energy. Ketone-IQ’s new Green Apple and Raspberry Lemonade energy shots (ketone-only or ketone+caffeine) are NSF Certified for Sport and hitting major retailers. Read more on Wellworthy.

• Caffeinated Protein. BOLD BAR’s honey-sweetened bars pack 20g protein + 100mg caffeine for dual energy and recovery. Fuel up here.

• Gamifying fitness. ARES 1.0 connected shoes turn workouts into immersive games with real-time metrics for indoor and outdoor moves. Pre order here.

• Fairway style. adidas Originals Golf reimagines the brand's heritage with modern apparel, footwear, and accessories. Catch pro Ludvig Aberg rocking select pieces at this week’s major. Shop now. 

• Fueling workouts. CLIF BAR’s Caffeinated Collection — Vanilla Almond and Caramel Chocolate Chip — delivers 65mg organic caffeine + 10g plant-based protein. Explore it here.

• Racing Innovation. On’s Cloudboom Strike LS drops April 10 in White/Lime with LightSpray™ tech—a seamless, laceless upper for a locked-in fit. Discover it at On.

• Nostalgic treats. Oddball’s fruit jiggly snacks skip gelatin, dyes, and fake sweeteners for real-fruit nostalgia. Now at Sprouts nationwide. Grab yours here.

• Hitting protein goals. Slate’s Ultra shakes blend milkshake vibes with 42g protein, 2g sugar, ≤200 calories. Get yours now.

• Focused energy. Onnit’s Aubrey Marcus intros Korrect — paraxanthine-powered energy with Zynamite and enXtra for clean, sharp focus. Learn more here.

Today’s newsletter was brought to you by Joe Niehaus and Ash Read.

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