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Lamb, variety meats and by-products, heart, cooked, braised

Lamb/Game Per 100 g · Per 100g serving
Also available: Raw

Lamb, variety meats and by-products, heart, cooked, braised is a meat at 185 calories per 100g. It is an excellent source of Vitamin B12, Riboflavin (B2) and Selenium, providing 467%, 92% and 86% of the Daily Value respectively. This meat is high in protein. Lamb and game meats are sources of complete protein, iron, zinc, and B12. Grass-fed varieties may have different fatty acid profiles compared to grain-fed. Our database tracks 63 nutrients for this food, plus insulin index, environmental footprint data.

185
Calories
kcal
25.0
Protein
g
7.9
Fat
g
1.9
Carbs
g
0
Fiber
g

Top Nutrients

☀️
Vitamin B12
11.2 µg
467% DV
☀️
Riboflavin (B2)
1.2 mg
92% DV
💎
Selenium
47.0 µg
86% DV

Data for 63 of 150 tracked nutrients

Nutrient Fingerprint

How this food scores across key nutrient categories, as a percentage of the daily recommended value per 100 g. Based on USDA DRIs for adults.

Complete Nutrient Profile

Macronutrients 8
NutrientPer 100gUnitPer Serving% DV
Water SR64.2g
2%
Calories SR185kcal
Energy (kJ) SR774kj
Protein SR25.0g
45%
Total Fat SR7.9g
Carbohydrate SR1.9g
2%
Fiber SR0g
Ash SR0.99g
Minerals 10
NutrientPer 100gUnitPer Serving% DV
Calcium SR14.0mg
1%
Iron SR5.5mg
69%
Magnesium SR24.0mg
6%
Phosphorus SR254mg
36%
Potassium SR188mg
6%
Sodium SR63.0mg
4%
Zinc SR3.7mg
34%
Copper SR0.61mg
68%
Manganese SR0.06mg
2%
Selenium SR47.0µg
86%
Vitamins 14
NutrientPer 100gUnitPer Serving% DV
Vitamin A (RAE) SR0µg
Vitamin A (IU) SR0IU
Retinol SR0µg
Vitamin C SR7.0mg
8%
Thiamin (B1) SR0.17mg
14%
Riboflavin (B2) SR1.2mg
92%
Niacin (B3) SR4.4mg
27%
Pantothenic Acid (B5) SR1.4mg
27%
Vitamin B6 SR0.30mg
23%
Folate SR2.0µg
0%
Folic Acid SR0µg
Folate (food) SR2.0µg
Folate (DFE) SR2.0µg
Vitamin B12 SR11.2µg
467%
Fatty Acids 7
NutrientPer 100gUnitPer Serving% DV
Saturated Fat SR3.1g
Monounsaturated Fat SR2.2g
Polyunsaturated Fat SR0.77g
Cholesterol SR249mg
Omega-3 EPA SR0.06g
Omega-3 DPA SR0.04g
Omega-3 DHA SR0.04g
Individual Fatty Acids 6
NutrientPer 100gUnitPer Serving% DV
Lauric Acid (12:0) SR0.02g
Myristic Acid (14:0) SR0.18g
Palmitic Acid (16:0) SR1.2g
Stearic Acid (18:0) SR1.6g
Linoleic Acid (18:2) SR0.33g
2%
Linolenic Acid (18:3) SR0.18g
Amino Acids 18
NutrientPer 100gUnitPer Serving% DV
Tryptophan SR0.27g
Threonine SR1.2g
Isoleucine SR1.1g
Leucine SR2.1g
Lysine SR1.9g
Methionine SR0.55g
Cystine SR0.21g
Phenylalanine SR1.1g
Tyrosine SR0.78g
Valine SR1.2g
Arginine SR1.6g
Histidine SR0.57g
Alanine SR1.5g
Aspartic Acid SR2.2g
Glutamic Acid SR3.2g
Glycine SR1.2g
Proline SR1.1g
Serine SR0.96g

Nutrient Density Score

The NRF9.3 score measures overall nutritional quality per 100 kcal. It rewards 9 nutrients to encourage (protein, fiber, vitamins A, C, E, calcium, iron, magnesium, potassium) and penalizes 3 to limit (saturated fat, added sugars, sodium). Higher is better; negative scores indicate the food is high in limit nutrients relative to its beneficial content.

44
NRF9.3 Score
Moderate · per 100 kcal
Poor (<0) Moderate Good Excellent (100+)

NRF9.3 index: Fulgoni et al. (2009), J Nutr 139(8). DVs based on FDA 2020 reference values.

Nutrient Interactions in This Food

Nutrients in this food that enhance or compete with each other during absorption.

✔ Synergies — nutrients that help each other

Vitamin C + Iron●●●

Vitamin C dramatically enhances non-heme iron absorption by reducing Fe³⁺ to Fe²⁺ in the gut. Adding 75 mg vitamin C to a meal can increase iron absorption 3–4 fold.

Hallberg et al., Am J Clin Nutr, 1989

Vitamin B6 + Magnesium●●

Vitamin B6 may enhance intracellular magnesium accumulation. Combined supplementation has shown greater benefits for stress and anxiety than magnesium alone.

Pouteau et al., PLoS One, 2018

Vitamin C + Selenium●●

Vitamin C supports selenium's antioxidant function by maintaining the glutathione system in its reduced state.

Rayman, Lancet, 2012

⚠ Antagonisms — nutrients that compete

Zinc vs Copper●●●

High zinc intake induces metallothionein in enterocytes, which traps copper and blocks its absorption. Prolonged high-dose zinc can cause copper deficiency.

Prasad et al., JAMA, 1978; Fosmire, Am J Clin Nutr, 1990

Zinc vs Iron●●

Zinc and non-heme iron compete for the same intestinal transporter (DMT1). High doses of one can reduce absorption of the other when taken simultaneously.

Rossander-Hulten et al., Am J Clin Nutr, 1991

Vitamin C vs Copper●●

High-dose vitamin C (>1,500 mg/day) may reduce copper absorption by reducing Cu²⁺ to Cu⁺, though the clinical significance at normal intakes is minimal.

Harris, Am J Clin Nutr, 2003

Amino Acid Profile

Essential amino acid composition compared to the WHO/FAO adult reference pattern. The Amino Acid Score indicates protein quality — 100 means all essential amino acid requirements are met.

128
Amino Acid Score
Complete
Valine
Lowest Scoring
18
Amino Acids Tracked

✓ Complete protein — all essential amino acids meet or exceed WHO reference levels.

All Amino Acids (18)
Amino Acidg / 100gmg / g protein
Tryptophan0.2710.9
Threonine1.247.2
Isoleucine1.143.3
Leucine2.185.1
Lysine1.975.3
Methionine0.5521.9
Cystine0.218.4
Phenylalanine1.143.3
Tyrosine0.7831.2
Valine1.249.8
Arginine1.665.4
Histidine0.5722.9
Alanine1.560.7
Aspartic Acid2.286.2
Glutamic Acid3.2127.7
Glycine1.248.3
Proline1.145.4
Serine0.9638.6

Fatty Acid Profile

Breakdown of fat types per 100g. A healthy fat profile favours unsaturated fats (mono + poly) and a balanced omega-3 to omega-6 ratio.

3.1g
Saturated
2.2g
Monounsaturated
0.77g
Polyunsaturated
1:2.4
Omega-3 : Omega-6 Ratio
Omega-6 dominant — ideal range is 1:1 to 1:4
Omega Fatty Acids
EPA (20:5 n-3)0.06 g
DHA (22:6 n-3)0.04 g
DPA (22:5 n-3)0.04 g
Linoleic acid (18:2 n-6)0.33 g

How Cooking Changes Nutrients

Estimated percentage of each nutrient retained after cooking, based on USDA retention factors for the “Lamb” food category. Values of 100% mean no loss; lower values indicate nutrients lost to heat, water, or oxidation.

Key insights
Thiamin loses up to 62% when simmered. Broiled / Grilled retains 65%.
Folate loses up to 40% when simmered. Roasted retains 85%.
Vitamin B6 loses up to 38% when simmered. Roasted retains 75%.

Source: USDA Table of Nutrient Retention Factors, Release 6 (2007). Retention values are category-level averages — actual retention depends on cooking time, temperature, and water volume.

USDA Retention Factors

Insulin Response

The Insulin Index (II) measures the actual insulin response to food on a scale where white bread = 100. Unlike the Glycemic Index (which only measures blood sugar), the II captures the full hormonal response — including the effect of protein and fat on insulin secretion. This is why high-protein foods like meat and dairy can have significant insulin scores despite having low or zero GI values.

51
Insulin Index
Moderate Insulin Response
Insulin Index Scale 51
0 Low ≤30 Mod ≤60 High ≤100 120
Category ●● Assigned from measured food category

Source: Holt et al. 1997; Bao et al. 2016; Bell 2014

Environmental Impact

Environmental footprint per kilogram of food produced. Data represents the global average for the “Lamb & Mutton” category.

39.7
kg CO₂e / kg
Very High Impact
370
m² land / kg
Land Use
1,803
L water / kg
Water Use
139
g SO₂e / kg
Acidification
How this compares (GHG emissions)
Potatoes (0.5)Chicken (9.9)Beef (99.5)
Greenhouse Gas Emissions39.7 kg CO₂e / kg
Land Use370 m² / kg
Water Use1,803 L / kg
Eutrophication97.1 g PO₄e / kg
Acidification139 g SO₂e / kg
⚠️ Important context about this data
  • Global averages: These figures are production-weighted averages from a meta-analysis of ~38,700 farms across 119 countries (Poore & Nemecek, 2018). Actual impact varies enormously by farming method, geography, and supply chain.
  • System boundary: Cradle-to-retail only — does not include consumer transport, home cooking energy, or food waste.
  • Soil carbon not included: This data does not account for soil carbon sequestration. Some argue that well-managed regenerative grazing partially offsets ruminant emissions; however, full lifecycle accounting — including methane, land-use change, and the opportunity cost of using land for grazing vs. reforestation — typically makes the net footprint of ruminant meat higher, not lower. This is especially relevant in temperate grassland regions like Ireland.
  • Not gospel: This data is informational and illustrative. It is useful for understanding relative magnitudes, but should not be treated as precise measurements for any individual product or farm.

Source: Poore & Nemecek (2018), Science 360(6392). Meta-analysis of ~38,700 farms, 119 countries, 46 product categories.

Global Supply: Meat

Top 10 countries by per capita supply of the “Meat” food group (kcal/capita/day, 2023). This is food group–level data from FAO Food Balance Sheets, not specific to this individual food.

1.
Tonga
755
2.
Mongolia
643
3.
Argentina
571
4.
China; Macao SAR
546
5.
Marshall Islands
539
6.
Ireland
532
7.
Bahamas
527
8.
Saint Vincent and the Grenadines
516
9.
Nauru
510
10.
Belarus
498

Global Supply Trend (1961–2023)

+56%
1961: 156 kcal2023: 244 kcal

Source: FAO Food Balance Sheets (2023). Supply = production + imports − exports − waste, converted to kcal/capita/day.

Frequently Asked Questions

How many calories are in Lamb, variety meats and by-products, heart, cooked, braised?

Lamb, variety meats and by-products, heart, cooked, braised contains 185 kcal per 100 grams, making it a moderate-calorie food. The energy comes from 25.0g of protein (54% of calories), 7.9g of fat (38%), and 1.9g of carbohydrates (4%). Protein is the primary energy source.

What is Lamb, variety meats and by-products, heart, cooked, braised most nutritious for?

The standout nutrient in Lamb, variety meats and by-products, heart, cooked, braised is Vitamin B12, providing 11.2 µg per 100g (467% of the Daily Value). It is also a notable source of Riboflavin (B2) (92% DV). Our database tracks 63 individual nutrients for this food, allowing detailed comparison across vitamins, minerals, amino acids, and fatty acids.

Is Lamb, variety meats and by-products, heart, cooked, braised high in protein?

With 25.0g per 100 grams, Lamb, variety meats and by-products, heart, cooked, braised is a high-protein food. Protein accounts for 54% of its total calories, making it suitable for diets focused on protein intake.

How much fiber is in Lamb, variety meats and by-products, heart, cooked, braised?

Lamb, variety meats and by-products, heart, cooked, braised contains no dietary fiber. This is typical for animal-derived food. Pair with plant-based foods to ensure adequate fiber intake.

What is the insulin index of Lamb, variety meats and by-products, heart, cooked, braised?

Lamb, variety meats and by-products, heart, cooked, braised has a moderate insulin response (II: 51) (estimated from macronutrient composition) on the insulin index scale (white bread = 100). This is a typical insulin response for most mixed foods. Note that the insulin index can differ substantially from the glycemic index — dairy products and high-protein foods often have higher insulin responses than their GI would suggest.