When it comes to boosting your dog's nutrition naturally, adding superfoods like kelp, spirulina & blue spirulina to their diet can offer incredible health benefits. Each of these ingredients brings something unique to the table--but which one is best for your dog? And how can you safely incorporate them into a fresh diet?
Let's break it down so you can make the best choice for your pup.
Kelp: The Mineral Powerhouse Superfood
Kelp is a nutrient-dense seaweed, rich in iodine minerals, and antioxidants. It's well-known for supporting thyroid function, skin & coat health, and metabolism.
Benefits of Kelp for Dogs
Supports Thyroid Function --Naturally high in iodine, which is essential for thyroid hormone production.
Improves Skin & Coat --Helps reduce dry, flaky skin & excessive shedding.
Rich in Trace Minerals -- Contains zinc, selenium, magnesium & iron, which support the immune system & metabolic function.
Detoxification -- Kelp binds to heavy metals and helps remove toxins from the body.
*** Potential Concerns
Iodine Sensitivity: Because kelp is naturally high in iodine, too much can disrupt thyroid function--leading to hypothyroidism (low thyroid) or hyperthyroidism (overactive thyroid).
Feeding Caution: Many commercial kelp powders recommend a 14-day limit before taking a break to prevent iodine overload.
How to Safely Use Kelp in a Raw Diet
Start slow - Introduce in very small amounts and monitor for any signs of thyroid sensitivity (weight gain, energy changes).
Use in Rotation - I can't highlight this enough!!! Rotation is used in every ancient and modern medicine practice. Feed for 2-3 weeks on and then take a break OR>>>>feed 2-3x per week! Don't allow buildup by ensuring rotational feeding.
Best Paired With: Fish-based meals, omega-rich foods and raw diets low in iodine (most PMR diets).
Dosage:
Small dogs (<25lbs): 1/32tsp PER DAY (~63mcg iodine)
Medium dogs (25-50lbs): 1/16tsp PER DAY (~125mcg iodine)
Large dogs (50-100lbs): 1/8tsp PER DAY (~250mcg iodine)
Giant breeds (100+ lbs): 1/4tsp PER DAY (~500mcg iodine)
Spirulina (Green): The Immune-Boosting Superfood
Unlike kelp, spirulina is a blue-green algae that does NOT contain iodine, making it a great alternative for dogs that don't need iodine or thyroid support but still want the benefits of a powerful superfood. (Please note that trace minerals such as iodine is a critical part of a nutritional diet and must not be omitted completely).
Benefits of Spirulina for Dogs
High in Protein - 60-70% protein by weight, making it a great addition for active and growing dogs.
Rich in Chlorophyll - Supports detoxification, digestion, and gut health.
Boosts the Immune System - Acts as a natural antihistamine, making it ideal for Allergy-prone dogs.
Reduces Inflammation - Spirulina is packed with antioxidants & essential fatty acids.
How to use Spirulina in a Fresh Diet
Safe for daily use - there is no excessive iodine to monitor
Best Paired With: Liver, heart, & high protein meals (like Heritage Pure Prey Diets) for a nutritional boost.
Dosage
Small dogs (<25 lbs): 1/16th tsp PER DAY
Medium dogs (25-50 lbs): 1/8TH tsp PER DAY
Large dogs (50-100 lbs): 1/4 tsp PER DAY
Giants breeds (100+ lbs): 1/3-1/2 tsp PER DAY
Blue Spirulina: The Anti-Inflammatory Powerhouse Superfood
Blue spirulina is a concentrated extract of green spirulina, where the phycocyanin pigment is isolated. This makes it one of the most powerful, natural anti-inflammatories for animals & humans...also, hands down my favorite sea-based superfood!
Unlike kelp and green spirulina, blue spirulina contains no iodine or chlorophyll but is incredibly rich in antioxidants that support cellular repair, brain health, and immune function.
Benefits of Blue Spirulina Superfood for Dogs
Reduces Inflammation - Ideal for arthritis, joint issues, and chronic pain.
Support Brain & Nerve Health - Great for senior dogs or those with neurological concerns.
Detox & Cellular Repair - Helps remove oxidative stress & free radicals.
How to Safely Use Blue Spirulina in a Fresh Diet
Use as needed for inflammation support (can be used long-term in small amounts).
Best Paired With: Broths (Liquid Gold & Jiggles), omega-rich fish, and joint-supporting foods.
*Dosage:
Small dogs (<25 lbs); 1/32tsp PER DAY
Medium dogs (25-50 lbs): 1/16tsp PER DAY
Large dogs (50-100 lbs): 1/8tsp PER DAY
Giant Breeds (100+ lbs): 1/4tsp PER DAY
<<PLEASE NOTE THESE ARE DOSAGE SUGGESTIONS FOR RAWSOME BLUE SPIRULINA, WHICH IS A HIGHLY CONCENTRATED, EXTREMELY POTENT, E-40 GRADE, ONLY AVAILABLE FROM APPROVED RETAILERS>>
Which One Should You Choose?
Superfood | Best For | Additional Notes |
Kelp | Dogs needing thyroid support, skin & coat health, and trace minerals. | Must be cycled (rotational offering) |
Spirulina (Green) | Dogs needing immune support, detox, and a protein boost. | Safe for daily use |
Blue Spirulina | Dogs with inflammation, joint issues, or neurological concerns | Great for targeted support |
Best Approach? Rotate kelp and spirulina while using blue spirulina as needed for extra inflammation support (cut dosage of all in half if doing this protocol).
Easy Ways to Add These to a Fresh Diet
Mix into raw meals - Sprinkle the powder on meat, or broths/jiggles before serving.
Blend into goat milk or broth/jiggles - this makes it more palatable and easier to digest.
Make a frozen supplement treat - Mix with goat milk or broth, pour into molds, and freeze.
Rotate between kelp and spirulina - This prevents excess iodine intake while keeping the benefits of both.
Final Thoughts: Give Your Dog the Right Superfood Boost!
All three of these nutrient-packed superfoods have their place in a raw diet.
For daily immune & gut health - go with green spirulina
For thyroid support & mineral balance - use kelp intermittently.
For inflammation, allergies, or senior support - use blue spirulina as needed.
By understanding each superfood's strengths and using them strategically, you can give your dog the best possible nutrition without any risks!
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