The diets react (see scores below)
Diet Ratings
Pig blood (blood cake/black pudding) contains approximately 1-2g net carbs per 100g in pure form, but commercial versions often include fillers and grains. High in iron and protein. Requires sourcing pure blood products without additives.
Some keto practitioners avoid blood products due to potential processing additives and prefer muscle meat; others embrace it as a nutrient-dense whole food.
Pig blood is an animal product derived from slaughtered pigs. It is explicitly excluded from all vegan diets.
Pig blood is an unprocessed animal product, rich in iron and nutrients. Organ meats and blood are nutrient-dense paleo staples. Available to hunter-gatherers as nose-to-tail eating.
Pig blood is a pork product and processed meat derivative. Mediterranean diet limits red meat and pork to a few times per month. Blood products are highly processed and not part of traditional Mediterranean cuisine. High in saturated fat and sodium when prepared.
Pure animal-derived organ product from pork. Blood is nutrient-dense, containing iron, B vitamins, and other micronutrients. Fully aligned with carnivore principles.
Pig blood is a whole, unprocessed animal product. Whole30 allows all meat and animal products including organ meats and blood. This is a fully compliant protein source.
Pig blood (blood cake, blood tofu) is a protein-rich food with negligible carbohydrate content. It contains no fructans, GOS, lactose, excess fructose, or polyols. Monash classifies all unprocessed meat and organ products as low-FODMAP.
Pig blood (blood cake/black pudding) is high in iron and protein but also high in saturated fat and cholesterol depending on preparation. DASH limits saturated fat and red meat products. Nutritional profile is mixed; lean preparation methods improve compatibility.
Some DASH practitioners view organ meats like blood as acceptable lean protein sources rich in micronutrients, whereas traditional DASH guidelines emphasize limiting red meat and high-saturated-fat animal products.
Pig blood (blood cake/coagulated blood) is a protein source (~12g protein per 100g) but contains higher iron and some saturated fat. It can fit into Zone blocks as a protein source, but is less ideal than lean poultry or fish. Acceptable in moderation as part of a balanced meal.
Pig blood (blood cake) is nutrient-dense with iron, B vitamins, and protein. However, it is a red meat product high in heme iron and arachidonic acid, which can promote inflammatory pathways in excess. It is also often processed or prepared with added sodium. Acceptable occasionally but not a primary anti-inflammatory protein.
Some traditional medicine and nutrient-density advocates view organ meats including blood as highly beneficial for micronutrient status. Anti-inflammatory frameworks prioritize plant-based and fish proteins, making blood a secondary choice despite its nutrient profile.
Pig blood (blood cake/black pudding) is high in protein (~15-20g per 100g) and iron but also high in saturated fat (~10-15g per 100g) and cholesterol. Nutrient-dense but fat content may worsen GLP-1 side effects (nausea, bloating). Acceptable in small portions paired with high-fiber foods; not ideal as a primary protein source.
Some GLP-1 nutrition guidance accepts organ meats including blood as nutrient-dense protein sources despite fat content, while others recommend leaner proteins (chicken, fish, tofu) to minimize GI side effects during the critical early weeks of therapy.
Nutritional profile
Six traits that cut across every diet.
Fiber & Plants
How much whole-plant food and fiber it delivers.
Healthy Fats
The quality of its fats (unsaturated, omega-3).
Whole / Unprocessed
How close it is to its natural, unprocessed form.
Gut Gentle
How easy it is on digestion (low FODMAP, few irritants).
Low Glycemic
How little it spikes your blood sugar.
Protein Density
How much protein it packs per calorie.
Controversy Index
Score range: 1–9/10. Higher controversy = more disagreement between diets.
Diet-Specific Tips for Pig blood
Keto — 5/10- Low net carbs if pure
- High iron content
- Processing additives vary
- Sourcing quality is critical
Paleo — 9/10- Unprocessed animal product
- Nutrient-dense
- Nose-to-tail eating
- Traditional hunter-gatherer food
Carnivore — 9/10- Animal-derived organ product
- Nutrient-dense
- Minimally processed
- Excellent micronutrient profile
Whole30 — 9/10- Whole animal product
- Meat category (allowed)
- No processing or additives
Low-FODMAP — 9/10- Protein-based food with minimal carbohydrates
- No FODMAPs present
- Unprocessed animal product
DASH — 5/10- High in iron and protein
- High in saturated fat (varies by preparation)
- High in cholesterol
- Red meat category (limited in DASH)
Zone — 6/10- Protein source
- Higher iron content
- Some saturated fat
- Less preferred than lean proteins
Anti-Inflammatory — 5/10- high in heme iron
- arachidonic acid content
- often processed with added sodium
- nutrient-dense but pro-inflammatory in excess
GLP-1 Friendly — 5/10- high protein (~15-20g/100g)
- high saturated fat (~10-15g/100g)
- high iron and micronutrients
- may worsen nausea/bloating
- small portions only