Page 1 - Reviews - Codeage, Grass-Fed Beef Kidney, 180 Vegetable Capsules (500 mg Per capsule) - iHerb
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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorized distributors.Show more
4.7
Based on 655 ratings
534
72
31
10
8
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What customers say
Customers generally appreciate the product for its natural ingredients and quality, noting benefits such as increased energy, improved well-being, and support for specific health conditions like histamine intolerance and allergies. Many find the capsules easy to swallow with no taste, though some mention the dosage recommendation is high. The product is praised for being grass-fed and pasture-raised, aligning with dietary preferences like keto or carnivore diets. Some users report noticeable improvements in symptoms like back pain, dizziness from anemia, and kidney support. However, a few customers did not notice immediate effects or experienced side effects like anxiety and sleep disturbances. Overall, the product receives positive feedback for its effectiveness and quality.
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iHerb customer
Posted on Feb 6, 2025
Canada
46
0
2
24
Good Product
Verified purchase
Bought this after reading another review stating kidney helps modulate histamine response. Also open and sprinkle capsules on my dogs food, entices them to eat. People used to eat more organs, this is a good way to get them in the diet. Clean brand.
Ted
Silver
Posted on Jan 5, 2026
Canada
292
0
0
19
Amazing
Verified purchase
Extremely healthy and clean ingredients. Loads of health benefits without the need to eat the actual kidney organ meat. And most importantly, not defatted for maximum health
joebonfi
Gold
Posted on Aug 7, 2025
Gibraltar
372
0
0
53
Codeage Grass Fed Beef Kidney
Verified purchase
Codeage Grass Fed Beef Kidney provides essential micronutrients like Vitamin B12, selenium, iron, zinc, and copper, supporting brain and nervous system function, red blood cell formation, and immune system health. The supplement is a source of naturally occurring vitamins and minerals from grass-fed, pasture-raised cattle. Users have reported benefits for conditions like histamine intolerance and potential improvements in fluid retention and kidney function markers. Dosage 6x tablets daily.
Violette
Silver
Posted on Nov 15, 2025
United States
151
0
1
10
Histamine support: DAO substitute
Verified purchase
I’m highly sensitive to histamine, and as I’m working towards healing I believe this product helps lower food-sourced histamine absorption. Went through an entire bottle and starting my second. I can’t credit it solely as I also am taking other supporting supplements, but I do believe it’s helping!
iHerb customer
Posted on Apr 22, 2025
United States
2
0
0
8
Excellent for histamine intolerance
Verified purchase
My husband and I both take this product with our high-histamine meals as we both have symptoms of histamine intolerance. It's one of our must have supplements. We take a higher doseage if the meal is particularly high in histamine. Much cheaper than DAO and great quality. People have commented about the smell (it is beef kidney, after all). We don't mind the odor or taste of it. The benefits outweigh the mild (mild to us mind you) aroma.
Itamemario
Posted on Apr 6, 2025
United States
86
1
12
74
Great!
Verified purchase
The quality and the ingredients are pure. The dosage is decent and the size lasts a long time. The taste is neutral and tolerable. This was a huge benefit for dealing with histamine issues. I like how fast it works. Helps so much with allergies. The price is high, but worth it for how much it helps
iHerb customer
Posted on Mar 25, 2025
United States
41
1
2
7
Amazing and works!
Verified purchase
The quality and benefits is easy to see and feel. When my husband’s nose allergies act up all I do is give him a little more than the usual dose and it calms his symptoms. Taste is great too because my 6 year old doesn’t mind it, we open the capsule and he consumes the powered straight into his mouth. This is my 3rd purchase and I highly recommend l!
CourtneyB
Posted on Oct 8, 2024
United States
35
0
1
19
Highly Effective
Verified purchase
I started out with one capsule just to make sure it’s a great fit for me. I noticed an immediate difference in my energy after I took one capsule. I’m excited to see how well these benefit me after I consistently take them! I trust the quality of the product and there are no unnecessary ingredients. The size of the capsules aren’t too big and you can take the dosage that works for you! It’s also tasteless which is a plus!
iHerb customer
Posted on Apr 18, 2026
United States
36
0
0
0
Verified purchase
I bought several supplements from this brand including NAD , omega-3, B-complex, and collagen. The products arrived well packaged and sealed properly. The quality looks good, and everything matches the description. I’m still in the process of using them, but so far I’m satisfied with the ingredients and overall quality. Easy to take and no issues so far. I will update my review after longer use.
iHerb customer
Posted on Oct 25, 2025
France
32
0
1
0
Best Supplement Ever!!
Verified purchase
This supplement is the best when it comes to hair loss and hair strengthening! like traditional chinese medecine says: the kidneys are responsible for bones and hair quality. I highly recommend. I've tried a lot of supplements. This one is without a doubt the one I would keep taking if i could only keep one!