## Step 1: Define the optimization problem
The problem is to minimize the objective function: $1.0 \times \text{mg of vitamin A} + 7.79 \times \text{mg of vitamin K} + 9.88 \times \text{mg of vitamin C}$, subject to various constraints.

## Step 2: Identify the variables
Let $x_0$ be the milligrams of vitamin A, $x_1$ be the milligrams of vitamin K, and $x_2$ be the milligrams of vitamin C.

## 3: Formulate the objective function
The objective function to minimize is: $1.0x_0 + 7.79x_1 + 9.88x_2$.

## 4: List all constraints
1. $9x_0 = 9$
2. $16x_0 = 16$
3. $6x_0 = 6$
4. $14x_0 = 14$
5. $15x_0 = 15$
6. $1x_1 = 1$
7. $15x_1 = 15$
8. $15x_1 = 15$
9. $5x_1 = 5$
10. $15x_1 = 15$
11. $10x_2 = 10$
12. $11x_2 = 11$
13. $6x_2 = 6$
14. $14x_2 = 14$
15. $8x_2 = 8$
16. $9x_0 + 1x_1 \geq 44$
17. $9x_0 + 10x_2 \geq 68$
18. $9x_0 + 1x_1 + 10x_2 \geq 68$
19. $16x_0 + 11x_2 \geq 53$
20. $15x_1 + 11x_2 \geq 30$
21. $16x_0 + 15x_1 + 11x_2 \geq 30$
22. $6x_0 + 6x_2 \geq 39$
23. $15x_1 + 6x_2 \geq 46$
24. $6x_0 + 15x_1 + 6x_2 \geq 46$
25. $5x_1 + 14x_2 \geq 25$
26. $16x_0 + 5x_1 \geq 35$
27. $16x_0 + 14x_2 \geq 40$
28. $16x_0 + 5x_1 + 14x_2 \geq 40$
29. $15x_0 + 15x_1 \geq 25$
30. $15x_0 + 8x_2 \geq 24$
31. $15x_0 + 15x_1 + 8x_2 \geq 24$
32. $-4x_0 + 2x_1 \geq 0$
33. $10x_0 - 8x_2 \geq 0$
34. $9x_0 + 10x_2 \leq 211$
35. $1x_1 + 10x_2 \leq 140$
36. $9x_0 + 1x_1 \leq 213$
37. $16x_0 + 11x_2 \leq 172$
38. $6x_0 + 6x_2 \leq 89$
39. $6x_0 + 15x_1 + 6x_2 \leq 147$
40. $5x_1 + 14x_2 \leq 170$
41. $16x_0 + 5x_1 + 14x_2 \leq 172$
42. $15x_0 + 15x_1 \leq 49$

## 5: Correct the interpretation of given equalities as constraints
Constraints 1 through 5 and 6 through 10 and 11 through 15 are actually equalities but seem to be incorrectly stated as they directly correspond to the given attributes of $x_0$, $x_1$, and $x_2$. These should be considered as part of the problem definition rather than constraints to be added to the optimization problem.

## 6: Write the Gurobi code
```python
import gurobi

def optimize_vitamins():
    model = gurobi.Model()

    # Define variables
    x0 = model.addVar(name="vitamin_A", lb=-gurobi.GRB.INFINITY, ub=gurobi.GRB.INFINITY)
    x1 = model.addVar(name="vitamin_K", lb=-gurobi.GRB.INFINITY, ub=gurobi.GRB.INFINITY)
    x2 = model.addVar(name="vitamin_C", lb=-gurobi.GRB.INFINITY, ub=gurobi.GRB.INFINITY)

    # Objective function
    model.setObjective(1.0*x0 + 7.79*x1 + 9.88*x2, gurobi.GRB.MINIMIZE)

    # Constraints
    model.addConstr(9*x0 == 9, name="muscle_growth_vitamin_A")
    model.addConstr(16*x0 == 16, name="cardiovascular_support_vitamin_A")
    model.addConstr(6*x0 == 6, name="digestive_support_vitamin_A")
    model.addConstr(14*x0 == 14, name="cognitive_performance_vitamin_A")
    model.addConstr(15*x0 == 15, name="immune_support_vitamin_A")

    model.addConstr(1*x1 == 1, name="muscle_growth_vitamin_K")
    model.addConstr(15*x1 == 15, name="cardiovascular_support_vitamin_K")
    model.addConstr(15*x1 == 15, name="digestive_support_vitamin_K")
    model.addConstr(5*x1 == 5, name="cognitive_performance_vitamin_K")
    model.addConstr(15*x1 == 15, name="immune_support_vitamin_K")

    model.addConstr(10*x2 == 10, name="muscle_growth_vitamin_C")
    model.addConstr(11*x2 == 11, name="cardiovascular_support_vitamin_C")
    model.addConstr(6*x2 == 6, name="digestive_support_vitamin_C")
    model.addConstr(14*x2 == 14, name="cognitive_performance_vitamin_C")
    model.addConstr(8*x2 == 8, name="immune_support_vitamin_C")

    model.addConstr(9*x0 + x1 >= 44, name="muscle_growth_combined_A_K")
    model.addConstr(9*x0 + 10*x2 >= 68, name="muscle_growth_combined_A_C")
    model.addConstr(9*x0 + x1 + 10*x2 >= 68, name="muscle_growth_combined_A_K_C")

    model.addConstr(16*x0 + 11*x2 >= 53, name="cardiovascular_support_combined_A_C")
    model.addConstr(15*x1 + 11*x2 >= 30, name="cardiovascular_support_combined_K_C")
    model.addConstr(16*x0 + 15*x1 + 11*x2 >= 30, name="cardiovascular_support_combined_A_K_C")

    model.addConstr(6*x0 + 6*x2 >= 39, name="digestive_support_combined_A_C")
    model.addConstr(15*x1 + 6*x2 >= 46, name="digestive_support_combined_K_C")
    model.addConstr(6*x0 + 15*x1 + 6*x2 >= 46, name="digestive_support_combined_A_K_C")

    model.addConstr(5*x1 + 14*x2 >= 25, name="cognitive_performance_combined_K_C")
    model.addConstr(16*x0 + 5*x1 >= 35, name="cognitive_performance_combined_A_K")
    model.addConstr(16*x0 + 14*x2 >= 40, name="cognitive_performance_combined_A_C")
    model.addConstr(16*x0 + 5*x1 + 14*x2 >= 40, name="cognitive_performance_combined_A_K_C")

    model.addConstr(15*x0 + 15*x1 >= 25, name="immune_support_combined_A_K")
    model.addConstr(15*x0 + 8*x2 >= 24, name="immune_support_combined_A_C")
    model.addConstr(15*x0 + 15*x1 + 8*x2 >= 24, name="immune_support_combined_A_K_C")

    model.addConstr(-4*x0 + 2*x1 >= 0, name="interaction_A_K")
    model.addConstr(10*x0 - 8*x2 >= 0, name="interaction_A_C")

    model.addConstr(9*x0 + 10*x2 <= 211, name="muscle_growth_limit_A_C")
    model.addConstr(x1 + 10*x2 <= 140, name="muscle_growth_limit_K_C")
    model.addConstr(9*x0 + x1 <= 213, name="muscle_growth_limit_A_K")

    model.addConstr(16*x0 + 11*x2 <= 172, name="cardiovascular_support_limit_A_C")
    model.addConstr(6*x0 + 6*x2 <= 89, name="digestive_support_limit_A_C")
    model.addConstr(6*x0 + 15*x1 + 6*x2 <= 147, name="digestive_support_limit_A_K_C")

    model.addConstr(5*x1 + 14*x2 <= 170, name="cognitive_performance_limit_K_C")
    model.addConstr(16*x0 + 5*x1 + 14*x2 <= 172, name="cognitive_performance_limit_A_K_C")

    model.addConstr(15*x0 + 15*x1 <= 49, name="immune_support_limit_A_K")

    model.optimize()

    if model.status == gurobi.GRB.Status.OPTIMAL:
        print("Optimal solution found.")
        print(f"Vitamin A: {x0.varValue}")
        print(f"Vitamin K: {x1.varValue}")
        print(f"Vitamin C: {x2.varValue}")
        print(f"Objective: {model.objVal}")
    else:
        print("No optimal solution found.")

optimize_vitamins()
```