## Step 1: Define the optimization problem
The problem is to maximize the objective function: $5.67x_0 + 8.95x_1 + 7.6x_2 + 4.9x_3 + 4.43x_4$, where $x_0, x_1, x_2, x_3, x_4$ represent the milligrams of vitamin D, vitamin B7, magnesium, zinc, and vitamin B2, respectively.

## Step 2: List all the constraints
The constraints are as follows:
- $x_0 + 4x_1 + 8x_2 + x_3 + x_4 \leq 62$
- $4x_1 + x_3 \geq 9$
- $4x_1 + 8x_2 + x_3 \geq 6$
- $x_0 + x_3 + x_4 \geq 6$
- $4x_1 + 8x_2 + x_4 \geq 6$
- $4x_1 + 8x_2 + x_3 \geq 8$
- $4x_1 + x_3 + x_4 \geq 8$
- $x_0 + x_3 + x_4 \geq 8$
- $4x_1 + 8x_2 + x_4 \geq 8$
- $4x_1 + 8x_2 + x_3 \geq 6$
- $4x_1 + x_3 + x_4 \geq 6$
- $x_0 + x_3 + x_4 \geq 6$
- $4x_1 + 8x_2 + x_3 \geq 12$
- $4x_1 + x_3 + x_4 \geq 12$
- $x_0 + x_3 + x_4 \geq 12$
- $4x_1 + 8x_2 + x_4 \geq 12$
- $x_3 + x_4 \leq 58$
- $8x_2 + x_3 \leq 54$
- $x_0 + x_3 \leq 31$
- $x_0 + 8x_2 \leq 41$
- $4x_1 + 8x_2 \leq 48$
- $4x_1 + 8x_2 + x_4 \leq 35$
- $x_0 + 4x_1 + 8x_2 \leq 44$
- $x_0 + 4x_1 + x_4 \leq 50$
- $8x_2 + x_3 + x_4 \leq 45$
- $4x_1 + x_3 + x_4 \leq 33$
- $x_0 + 4x_1 + 8x_2 + x_3 + x_4 \leq 33$

## 3: Define variable types
- $x_0$ is continuous
- $x_1$ is integer
- $x_2$ is continuous
- $x_3$ is integer
- $x_4$ is integer

## 4: Implement the optimization problem using Gurobi
```python
import gurobi

def optimize():
    # Create a new Gurobi model
    model = gurobi.Model()

    # Define variables
    x0 = model.addVar(lb=-gurobi.GRB.INFINITY, ub=gurobi.GRB.INFINITY, name="vitamin_D")
    x1 = model.addVar(lb=-gurobi.GRB.INFINITY, ub=gurobi.GRB.INFINITY, vtype=gurobi.GRB.INTEGER, name="vitamin_B7")
    x2 = model.addVar(lb=-gurobi.GRB.INFINITY, ub=gurobi.GRB.INFINITY, name="magnesium")
    x3 = model.addVar(lb=-gurobi.GRB.INFINITY, ub=gurobi.GRB.INFINITY, vtype=gurobi.GRB.INTEGER, name="zinc")
    x4 = model.addVar(lb=-gurobi.GRB.INFINITY, ub=gurobi.GRB.INFINITY, vtype=gurobi.GRB.INTEGER, name="vitamin_B2")

    # Objective function
    model.setObjective(5.67 * x0 + 8.95 * x1 + 7.6 * x2 + 4.9 * x3 + 4.43 * x4, gurobi.GRB.MAXIMIZE)

    # Constraints
    model.addConstr(x0 + 4 * x1 + 8 * x2 + x3 + x4 <= 62)
    model.addConstr(4 * x1 + x3 >= 9)
    model.addConstr(4 * x1 + 8 * x2 + x3 >= 6)
    model.addConstr(x0 + x3 + x4 >= 6)
    model.addConstr(4 * x1 + 8 * x2 + x4 >= 6)
    model.addConstr(4 * x1 + 8 * x2 + x3 >= 8)
    model.addConstr(4 * x1 + x3 + x4 >= 8)
    model.addConstr(x0 + x3 + x4 >= 8)
    model.addConstr(4 * x1 + 8 * x2 + x4 >= 8)
    model.addConstr(4 * x1 + 8 * x2 + x3 >= 6)
    model.addConstr(4 * x1 + x3 + x4 >= 6)
    model.addConstr(x0 + x3 + x4 >= 6)
    model.addConstr(4 * x1 + 8 * x2 + x3 >= 12)
    model.addConstr(4 * x1 + x3 + x4 >= 12)
    model.addConstr(x0 + x3 + x4 >= 12)
    model.addConstr(4 * x1 + 8 * x2 + x4 >= 12)
    model.addConstr(x3 + x4 <= 58)
    model.addConstr(8 * x2 + x3 <= 54)
    model.addConstr(x0 + x3 <= 31)
    model.addConstr(x0 + 8 * x2 <= 41)
    model.addConstr(4 * x1 + 8 * x2 <= 48)
    model.addConstr(4 * x1 + 8 * x2 + x4 <= 35)
    model.addConstr(x0 + 4 * x1 + 8 * x2 <= 44)
    model.addConstr(x0 + 4 * x1 + x4 <= 50)
    model.addConstr(8 * x2 + x3 + x4 <= 45)
    model.addConstr(4 * x1 + x3 + x4 <= 33)
    model.addConstr(x0 + 4 * x1 + 8 * x2 + x3 + x4 <= 33)

    # Optimize
    model.optimize()

    # Print solution
    if model.status == gurobi.GRB.OPTIMAL:
        print("Objective: ", model.objVal)
        print("vitamin D: ", x0.varValue)
        print("vitamin B7: ", x1.varValue)
        print("magnesium: ", x2.varValue)
        print("zinc: ", x3.varValue)
        print("vitamin B2: ", x4.varValue)
    else:
        print("No optimal solution found")

optimize()
```