Goal 1 — Full Nutritional Requirements

Daily targets for every macro, vitamin, and mineral — for one adult man and one adult woman, sedentary to lightly active. Combined targets are what the garden plan must deliver. Values from USDA Dietary Reference Intakes (DRIs).

Macronutrients

Nutrient Woman / Day Man / Day Combined / Day Combined / Year
Calories 1,600 – 2,400 kcal 2,000 – 3,200 kcal 3,600 – 5,600 kcal ~1,679,000 kcal
Protein 46 g 56 g 102 g ~37 kg
Total Fat 44 – 78 g 56 – 111 g 100 – 189 g
Omega-3 (ALA) 1.1 g 1.6 g 2.7 g ~985 g
Carbohydrates 130 g minimum 130 g minimum 260 g
Fiber 25 g 38 g 63 g ~23 kg
Water 2,100 mL (~8 cups) 2,600 mL (~10 cups) 4,700 mL (~18 cups)

Vitamins

Vitamin Woman / Day Man / Day Combined / Day Garden Sources
Vitamin A 700 mcg RAE 900 mcg RAE 1,600 mcg RAE Carrots, sweet potato, kale, apricot
Vitamin C 75 mg 90 mg 165 mg Peppers, sea buckthorn, black currant, kale
Vitamin D 15 mcg (600 IU) 15 mcg (600 IU) 30 mcg (1,200 IU) ⚠ UV-exposed mushrooms + sunlight; difficult from food alone
Vitamin E 15 mg 15 mg 30 mg Sunflower seed, hazelnut, kale
Vitamin K 90 mcg 120 mcg 210 mcg Kale, collards, chard, sorrel — abundant
B1 — Thiamine 1.1 mg 1.2 mg 2.3 mg Legumes, whole grains, seeds
B2 — Riboflavin 1.1 mg 1.3 mg 2.4 mg Eggs, leafy greens (partial)
B3 — Niacin 14 mg 16 mg 30 mg Legumes, seeds, mushrooms
B5 — Pantothenic 5 mg 5 mg 10 mg Widely available in whole foods
B6 1.3 mg 1.3 mg 2.6 mg Starchy veg, legumes, potatoes
B7 — Biotin 30 mcg 30 mcg 60 mcg Eggs, nuts, seeds
B9 — Folate 400 mcg 400 mcg 800 mcg Legumes, leafy greens, asparagus
B12 2.4 mcg 2.4 mcg 4.8 mcg Not in plants. Eggs, dairy, meat, or supplement required.

Minerals

Mineral Woman / Day Man / Day Combined / Day Garden Sources
Calcium 1,000 mg 1,000 mg 2,000 mg Kale, rhubarb, bok choy, chard, broccoli
Iron 18 mg 8 mg 26 mg Legumes, leafy greens — pair with vitamin C
Magnesium 310 – 320 mg 400 – 420 mg 720 mg Seeds, nuts, leafy greens, legumes
Phosphorus 700 mg 700 mg 1,400 mg Seeds, legumes, eggs — abundant
Potassium 2,600 mg 3,400 mg 6,000 mg Potatoes, beans, leafy greens, fruit
Sodium 1,500 mg 1,500 mg 3,000 mg Add sea salt or iodized salt to diet
Zinc 8 mg 11 mg 19 mg Legumes, pumpkin seeds, whole grains
Copper 0.9 mg 0.9 mg 1.8 mg Legumes, nuts, seeds, leafy greens
Manganese 1.8 mg 2.3 mg 4.1 mg Whole grains, legumes, leafy greens
Selenium 55 mcg 55 mcg 110 mcg ⚠ 1–2 Brazil nuts/person/day covers this entirely
Iodine 150 mcg 150 mcg 300 mcg Not reliably in garden soil. Use iodized salt or dried kelp.
Chromium 25 mcg 35 mcg 60 mcg Whole grains, broccoli, potatoes
Molybdenum 45 mcg 45 mcg 90 mcg Legumes, whole grains — easily met

Priority Gaps — What to Watch

These are the nutrients most likely to fall short in a plant-based garden system. Plan specifically for each one.
NutrientWhy It's HardSolution
Vitamin B12Zero plant sources4–6 chickens (daily eggs); dairy goat; or supplement
IodineNot in most garden soilIodized salt at table; 1 tsp dried kelp/week
SeleniumSoil-dependent; highly variable1–2 Brazil nuts per person per day
EPA/DHA Omega-3Plants only provide ALA (poorly converted)Pasture eggs; small fish pond; rabbits
Vitamin DMinimal food sourcesSunlight + UV-dried mushrooms
Complete proteinMost plants lack one or more amino acidsCombine legumes + grains; or eggs
CalciumHigh daily need; requires large greens volumeKale, bok choy, rhubarb daily; prioritize in garden
IronPlant iron (non-heme) poorly absorbedAlways pair iron-rich foods with vitamin C crops at same meal