Pure Vitamin C Powder for Dogs & Horses: Winter Immune and Joint Support from Winston & Porter

Why Vitamin C Matters More in Winter

Shorter days, wet weather, and plunging temperatures mean dogs and horses need extra support to stay healthy. While many animals can synthesise some vitamin C in their own bodies, stressful winter conditions—cold, damp stables or kennels, reduced turnout, muddy paddocks, less exercise—can quickly deplete their natural reserves.

Vitamin C (ascorbic acid) is a powerful antioxidant. It neutralises free radicals, supports collagen production for strong joints and tendons, aids in the absorption of iron, and plays a vital role in immune defence. Adding pure vitamin C powder to your dog or horse’s diet during the colder months is a simple, natural way to help them thrive.

Key Benefits of Pure Vitamin C Powder for Dogs

1. Immune System Boost

Winter brings a higher risk of coughs, sniffles, and kennel cough outbreaks. Vitamin C helps white blood cells fight infections and strengthens the respiratory system.

2. Joint and Connective Tissue Support

Collagen is the main structural protein in cartilage, ligaments, and tendons. Vitamin C is essential for collagen synthesis, making it a valuable supplement for dogs with arthritis, senior pets, or active breeds prone to joint wear.

3. Powerful Antioxidant

Cold weather exercise generates oxidative stress. Vitamin C’s antioxidant properties protect cells from damage, keeping skin, coat, and internal tissues healthy.

4. Stress Reduction

Holiday travel, fireworks, and changes to routine can all elevate cortisol levels, depleting vitamin C. Supplementation helps restore balance.

Suggested Use for Dogs

• Small dogs: 125–250 mg daily
  
  

• Medium dogs: 250–500 mg daily
  
  

• Large dogs: 500–1,000 mg daily
  Always introduce gradually and consult your vet if your dog has specific health conditions.
  
  

Why Horses Benefit From Extra Vitamin C in Winter

Unlike humans and guinea pigs, horses can synthesise vitamin C—but only when liver function and overall health are optimal. Stress from transport, limited turnout, respiratory challenges from dusty bedding, or competition schedules can all lower natural production.

1. Respiratory Health

Stabled horses inhale more dust and ammonia in winter. Vitamin C supports lung tissue and the immune system, reducing the risk of winter coughs.

2. Joint and Tendon Care

Performance horses, older horses, and those on box rest particularly benefit from collagen support for healthy joints and connective tissue.

3. Hoof and Skin Integrity

Vitamin C strengthens blood vessels and aids wound healing, helping cracked heels or minor winter scrapes repair more quickly.

Suggested Use for Horses

• Typical maintenance: 5–10 g per day
  
  

• Under stress or heavy work: up to 20 g per day (split into two feeds)
  Introduce slowly and always supply fresh water.
  
  

Why Choose Pure Vitamin C Powder?

Not all supplements are equal. Look for:

• Human-grade ascorbic acid with no fillers or artificial flavours.
  
  

• Fine, easy-mixing powder for quick absorption.
  
  

• Reliable sourcing and batch testing.
  
  

Winston & Porter’s Pure Vitamin C Powder meets these standards. It’s exactly what it says on the label: 100 % pure, high-quality vitamin C with no unnecessary additives—safe for both dogs and horses.

How to Add Vitamin C to Your Dog or Horse’s Diet

• Mix with food: Our powder blends easily into wet or dry feed.
  
  

• Split doses: For best absorption, divide the daily amount into two servings.
  
  

• Pair with joint supplements: Vitamin C enhances the effect of glucosamine, chondroitin, and omega oils.
  
  

Tip: Introduce the powder gradually over several days to avoid mild digestive upset.

Common Questions About Vitamin C for Pets

Do dogs and horses really need it?
Yes—especially in winter or times of stress. While their bodies make some vitamin C, production may not meet increased seasonal demands.

Is it safe long-term?
Pure ascorbic acid is water-soluble; excess is excreted in urine. Stick to recommended amounts and monitor for loose stools, which signal you may be giving slightly too much.

Can I give human vitamin C tablets instead?
Avoid flavoured or buffered human tablets that may contain xylitol or other unsafe ingredients. Use a trusted animal-friendly pure powder.

Practical Winter Tips Alongside Supplementation

• Keep exercise consistent: Shorter daylight means less natural movement. Regular walks or turnout support joint health.
  
  

• Provide adequate bedding and ventilation: Prevent respiratory stress in stabled horses and kenneled dogs.
  
  

• Hydration matters: Cold weather can reduce drinking; ensure fresh, unfrozen water is always available.
  
  

Give your pets the winter protection they deserve. Shop Winston & Porter Pure Vitamin C Powder for Dogs and Horses today to support:

• Stronger immune defences
  
  

• Healthier joints and tendons
  
  

• Faster recovery from exercise or minor injuries
  
  

Final Thoughts

Winter can be hard on our four-legged companions. With its unrivalled antioxidant power, pure vitamin C powder is a simple, scientifically backed way to help dogs and horses stay resilient through cold, damp months. Winston & Porter’s human-grade supplement is easy to use, affordable, and trusted by owners who want only the best.