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.
| Nutrient | Why It's Hard | Solution |
| Vitamin B12 | Zero plant sources | 4–6 chickens (daily eggs); dairy goat; or supplement |
| Iodine | Not in most garden soil | Iodized salt at table; 1 tsp dried kelp/week |
| Selenium | Soil-dependent; highly variable | 1–2 Brazil nuts per person per day |
| EPA/DHA Omega-3 | Plants only provide ALA (poorly converted) | Pasture eggs; small fish pond; rabbits |
| Vitamin D | Minimal food sources | Sunlight + UV-dried mushrooms |
| Complete protein | Most plants lack one or more amino acids | Combine legumes + grains; or eggs |
| Calcium | High daily need; requires large greens volume | Kale, bok choy, rhubarb daily; prioritize in garden |
| Iron | Plant iron (non-heme) poorly absorbed | Always pair iron-rich foods with vitamin C crops at same meal |